Data / Nonprofits / Iowa / Sioux City
Nonprofits in Sioux City, IA: 516 registered with the IRS
516 nonprofits are registered with the IRS in Sioux City, IA, 417 of them 501(c)(3) charities; the 205 that report revenue took in $1.80 billion. The largest by revenue: Mercy Health Services Iowa Corp ($933.9 million), Northwest Iowa Hospital Corporation ($254.3 million), Siouxland Regional Cancer Center ($78 million). Most common causes: religion-related (42), recreation and sports (37), arts, culture and humanities (35).
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The 500 largest by revenue
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Mercy Health Services Iowa Corp | Health care | 501(c)(3) | 1946 | $933.9 million | $1.39 billion | 2025-06 |
| Northwest Iowa Hospital Corporation | Health care | 501(c)(3) | 1983 | $254.3 million | $238.6 million | 2024-12 |
| Siouxland Regional Cancer Center | Diseases, disorders and medical disciplines | 501(c)(3) | 1994 | $78 million | $19.8 million | 2025-06 |
| Morningside University | Education | 501(c)(3) | 1950 | $72.9 million | $128.1 million | 2025-05 |
| Siouxland Community Health Center | Health care | 501(c)(3) | 1993 | $59.4 million | $57.8 million | 2026-01 |
| Goodwill of the Great Plains | Employment | 501(c)(3) | 1943 | $51.8 million | $60.3 million | 2024-12 |
| Briar Cliff University | Education | 501(c)(3) | 1946 | $37.5 million | $45.2 million | 2025-05 |
| Mid-Step Services Inc | Human services | 501(c)(3) | 1980 | $33.2 million | $27.3 million | 2025-06 |
| Siouxland Pace Inc | Health care | 501(c)(3) | 2008 | $28.1 million | $17.4 million | 2024-12 |
| Sunrise Manor | Health care | 501(c)(3) | 1958 | $15 million | $21.1 million | 2025-12 |
| Siouxland Mental Health Services | Mental health and crisis intervention | 501(c)(3) | 1970 | $13.3 million | $9.5 million | 2025-06 |
| Community Action Agency of Siouxland | 501(c)(3) | 1972 | $12.1 million | $5.7 million | 2025-09 | |
| Siouxland Community Christian School Inc | Education | 501(c)(3) | 2006 | $12.1 million | $23.9 million | 2025-06 |
| Holy Spirit Retirement Home Inc | 501(c)(3) | 1946 | $10 million | $8.8 million | 2024-12 | |
| Crittenton Center | Human services | 501(c)(3) | 1949 | $9.1 million | $4.6 million | 2025-06 |
| Opportunities Unlimited | 501(c)(3) | 1992 | $8.4 million | $6.7 million | 2025-06 | |
| Wilson Trailer Company Employee Health Care Fund | 501(c)(9) | 1982 | $8.3 million | $6.2 million | 2025-08 | |
| Mid-America Agri-Industries Voluntary Employees Beneficiary | 501(c)(9) | 1996 | $7.9 million | $250,570 | 2025-11 | |
| Siouxland Human Investment Partnership Inc | Human services | 501(c)(3) | 2000 | $7.6 million | $7 million | 2025-06 |
| Food Bank of Siouxland Inc | 501(c)(3) | 1994 | $7.5 million | $3.5 million | 2025-09 | |
| United Food and Commercial Workers International Union | 501(c)(5) | 1941 | $6.6 million | $4.2 million | 2025-12 | |
| Siouxland Community Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1989 | $6.2 million | $50.8 million | 2024-12 |
| Health Inc Hospice | Health care | 501(c)(3) | 1997 | $6.2 million | $10.3 million | 2025-06 |
| Boys and Girls Home Residential Treatment Centers Inc | Mental health and crisis intervention | 501(c)(3) | 1942 | $5.5 million | $22 million | 2025-12 |
| Legacy Foundation | Education | 501(c)(3) | 2009 | $4.9 million | $2.2 million | 2025-12 |
| Missouri River Historical Develop- Ment Inc | 501(c)(4) | 1991 | $4.2 million | $6.3 million | 2025-06 | |
| Catholic Charities of the Diocese of Sioux City | 501(c)(3) | 1946 | $4.1 million | $12.1 million | 2025-06 | |
| Art Center Association of Sioux City | 501(c)(3) | 1955 | $3.4 million | $10.7 million | 2025-06 | |
| United Way of Siouxland | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1964 | $3.2 million | $7.3 million | 2025-12 |
| Agape Community Services Inc | Religion-related | 501(c)(3) | 2020 | $2.9 million | $2.9 million | 2025-12 |
| St Lukes Health System Inc | 501(c)(3) | $2.9 million | $23.7 million | 2024-12 | ||
| The Gospel Mission | Human services | 501(c)(3) | 1989 | $2.8 million | $5.1 million | 2024-12 |
| Orpheum Theatre Preservation Project LTD | Arts, culture and humanities | 501(c)(3) | 1994 | $2.7 million | $8.4 million | 2024-12 |
| Wilson Trailer Sales Health Care Plan | Mutual and membership benefit | 501(c)(9) | 2014 | $2.6 million | $1.8 million | 2025-08 |
| Iowa Statewide Poison Control Center | Public safety, disaster preparedness and relief | 501(c)(3) | 2002 | $2.5 million | $3.1 million | 2025-06 |
| Camp High Hopes | Human services | 501(c)(3) | 2006 | $2.5 million | $11.1 million | 2024-12 |
| St Lukes Health Foundation of Sioux City Iowa | 501(c)(3) | 1988 | $2.3 million | $7.5 million | 2024-12 | |
| Sioux City Country Club Corp | 501(c)(7) | 1942 | $2.2 million | $2.6 million | 2025-04 | |
| Sioux City Symphony Orchestra Association | Arts, culture and humanities | 501(c)(3) | 1949 | $2.2 million | $5.4 million | 2025-06 |
| Boys and Girls Home of Sioux City Iowa | 501(c)(3) | 1989 | $2.1 million | $1 million | 2025-12 | |
| Saturday in the Park Inc | Arts, culture and humanities | 501(c)(3) | 1996 | $2.1 million | $674,090 | 2025-12 |
| Western Iowa Tech Community College Foundation | 501(c)(3) | 1991 | $1.9 million | $10.6 million | 2025-06 | |
| Monsignor Lafferty Tuition Foundation | 501(c)(3) | 1946 | $1.9 million | $2.2 million | 2025-12 | |
| Green Valley Floyd Golf Corp | 501(c)(3) | 1988 | $1.9 million | $1.9 million | 2025-12 | |
| St Lukes Health Resources | Health care | 501(c)(3) | 1976 | $1.9 million | $1.3 million | 2024-12 |
| Habitat for Humanity International Inc | 501(c)(3) | 1987 | $1.9 million | $4.9 million | 2025-06 | |
| Siouxland Humane Society Inc | Animal-related | 501(c)(3) | 1966 | $1.6 million | $6.2 million | 2025-12 |
| Safeplace | 501(c)(3) | 1980 | $1.5 million | $2.1 million | 2025-06 | |
| St James Fund | 501(c)(3) | 1946 | $1.5 million | $70.8 million | 2025-06 | |
| Mitchell Hospice House | Human services | 501(c)(3) | 2019 | $1.5 million | $3 million | 2024-12 |
| Siouxland Sports Academy | Recreation and sports | 501(c)(3) | 2024 | $1.5 million | $17,771 | 2024-12 |
| Boys and Girls Club of Siouxland Inc | Youth development | 501(c)(3) | 1968 | $1.4 million | $5.7 million | 2024-12 |
| Sioux City Chamber of Commerce | 501(c)(6) | 1985 | $1.4 million | $2.8 million | 2025-09 | |
| Queen of Peace Inc | 501(c)(3) | 1988 | $1.3 million | $5.8 million | 2024-12 | |
| Girls Incorporated of Sioux City | Youth development | 501(c)(3) | 1986 | $1.3 million | $8.1 million | 2024-12 |
| Sioux City Parks & Recreation Foundation Inc | Recreation and sports | 501(c)(3) | 2015 | $1.2 million | $2.2 million | 2025-12 |
| Warming Shelter Inc | Housing and shelter | 501(c)(3) | 2014 | $1.2 million | $1 million | 2025-12 |
| Youth for Christ USA Inc | Youth development | 501(c)(3) | 1954 | $1.1 million | $826,381 | 2025-06 |
| Mary J Treglia Community House | Human services | 501(c)(3) | 1949 | $1.1 million | $1.1 million | 2024-12 |
| New Perspectives Inc | Employment | 501(c)(3) | 1977 | $1.1 million | $1.5 million | 2025-06 |
| International Brotherhood of Electrical Workers | 501(c)(5) | 1967 | $1.1 million | $1.9 million | 2025-06 | |
| Pheasant Acres Apartments Inc | 501(c)(4) | 1978 | $1.1 million | $1.9 million | 2025-06 | |
| Siouxland Economic Development Corporation | 501(c)(4) | 1981 | $1 million | $5.6 million | 2025-09 | |
| Siouxland Expo Center | Arts, culture and humanities | 501(c)(3) | 2018 | $985,850 | $17.9 million | 2024-12 |
| Equipping the Persecuted | International, foreign affairs and national security | 501(c)(3) | 2020 | $955,017 | $3,446 | 2024-12 |
| Simple Life Inc | Human services | 501(c)(3) | 2015 | $885,966 | $385,821 | 2025-12 |
| Ardis Hartmann Trust Fbo Trinity Lutheran Church Akron Ia | 501(c)(91) | $859,131 | $2.8 million | 2024-12 | ||
| Siouxland Tanzania Educational Medical Ministries | Human services | 501(c)(3) | 1998 | $832,838 | $202,407 | 2024-12 |
| Sioux City Lewis & Clark Interpretive Center | Arts, culture and humanities | 501(c)(3) | 2003 | $828,258 | $4.8 million | 2025-06 |
| Sioux City Regional Convention and Visitors Bureau | Community improvement and capacity building | 501(c)(6) | 2020 | $818,878 | $443,610 | 2026-06 |
| Childrens Museum of Siouxland Inc | Arts, culture and humanities | 501(c)(3) | 2016 | $769,028 | $4.9 million | 2025-06 |
| Her Health Womens Center | 501(c)(3) | 1987 | $714,122 | $701,592 | 2025-12 | |
| Center for Siouxland | Human services | 501(c)(3) | 2007 | $703,855 | $2.3 million | 2025-12 |
| Ronald McDonald House Charities of Siouxland Inc | Health care | 501(c)(3) | 1996 | $667,448 | $3.3 million | 2024-12 |
| Independence Village Inc | 501(c)(4) | 1985 | $611,016 | $887,591 | 2025-06 | |
| Sanford Center | 501(c)(3) | 1949 | $601,600 | $1.3 million | 2025-12 | |
| Northwest Iowa Regional Board of Realtors | 501(c)(6) | 1967 | $588,711 | $1.3 million | 2025-09 | |
| Siouxland Initiative | 501(c)(6) | 1989 | $583,110 | $1.4 million | 2025-09 | |
| Down Town Partners Sioux City | 501(c)(4) | 1997 | $553,143 | $522,835 | 2025-06 | |
| Western Iowa Community Improvement Regional Housing Trust Fund | Housing and shelter | 501(c)(3) | 2023 | $549,058 | $319,693 | 2022-12 |
| Big Brothers Big Sisters of Siouxland | 501(c)(3) | 1979 | $527,865 | $248,998 | 2025-06 | |
| Family Services Inc | Human services | 501(c)(3) | 1990 | $522,044 | $332,171 | 2025-12 |
| Siouxland Historical Railroad Association | 501(c)(3) | 1985 | $481,891 | $2.8 million | 2024-12 | |
| Orpheum Theatre Endowment Inc | Arts, culture and humanities | 501(c)(3) | 2002 | $481,727 | $7.2 million | 2024-12 |
| Friends of FM 90 | Arts, culture and humanities | 501(c)(3) | 1977 | $474,410 | $2.9 million | 2025-06 |
| Sunnybrook Hope Center | Religion-related | 501(c)(3) | 2020 | $473,909 | $216,353 | 2025-12 |
| Siouxland Youth Hockey Association Inc | Recreation and sports | 501(c)(3) | 1997 | $464,992 | $1.2 million | 2025-05 |
| Hope Street of Siouxland | Housing and shelter | 501(c)(3) | 2020 | $458,764 | $475,201 | 2024-12 |
| Jewish Federation of Sioux City | 501(c)(3) | 1949 | $453,205 | $3.8 million | 2025-08 | |
| Siouxland Community Soup Kitchen Inc | 501(c)(3) | 1988 | $445,580 | $922,511 | 2025-12 | |
| Abu Bekr Shriners | Community improvement and capacity building | 501(c)(10) | 1940 | $442,612 | $1.5 million | 2024-12 |
| Noahs Hope | Animal-related | 501(c)(3) | 2010 | $439,365 | $826,503 | 2024-12 |
| Maple Heights Apartments Inc | 501(c)(4) | 1982 | $437,427 | $837,324 | 2025-12 | |
| Catholic School Foundation of the Diocese of Sioux City Iowa | Education | 501(c)(3) | 1969 | $428,287 | $21.2 million | 2025-06 |
| Saint Gabriel Communications LTD | Religion-related | 501(c)(3) | 2001 | $426,165 | $1.7 million | 2024-12 |
| Sioux City Housing Trust Fund Incorporated | Housing and shelter | 501(c)(3) | 2008 | $423,717 | $78,763 | 2025-06 |
| Holy Spirit Retirement Home Foundation Inc | 501(c)(3) | 1946 | $418,982 | $310,459 | 2024-12 | |
| Siouxland Senior Center | Human services | 501(c)(3) | 1972 | $417,583 | $2.7 million | 2024-06 |
| Siouxland Medical Education Foundation Inc | Health care | 501(c)(3) | 1975 | $417,314 | $2.1 million | 2026-06 |
| Sky Ranch Behavioral Services | Mental health and crisis intervention | 501(c)(3) | 2022 | $414,174 | $199,059 | 2025-12 |
| Miracle League of Sioux City | Recreation and sports | 501(c)(3) | 2014 | $396,214 | $468,861 | 2024-12 |
| Home Builders Association of Sioux City | 501(c)(6) | $385,486 | $812,079 | 2025-12 | ||
| Calvary Cemetery of Sioux City | 501(c)(3) | 1946 | $380,166 | $1.7 million | 2025-06 | |
| Hope Redemption Center | Religion-related | 501(c)(3) | 2020 | $372,135 | $94,226 | 2025-12 |
| Siouxland Youth Golf Association | Recreation and sports | 501(c)(3) | 2019 | $351,052 | $166,392 | 2024-12 |
| Mary Elizabeth Day Nursery Association | Human services | 501(c)(3) | 1947 | $328,826 | $544,765 | 2024-12 |
| Lila Maes House | Human services | 501(c)(3) | 2016 | $319,375 | $1.1 million | 2024-12 |
| Journal Goodfellow Charities Inc | 501(c)(3) | 1973 | $314,984 | $2.6 million | 2025-12 | |
| Sioux City Police Officers Association | 501(c)(5) | 1980 | $297,222 | $476,737 | 2025-06 | |
| St Florian Fire & Burn Foundation | Public safety, disaster preparedness and relief | 501(c)(3) | 2015 | $286,327 | $2.1 million | 2025-12 |
| Three Rivers Independent Living Corporation | 501(c)(3) | 1996 | $276,492 | $221,239 | 2025-09 | |
| Ancient & Accepted Scottish Rite of Free Masonry So Juris of USA | 501(c)(10) | 1940 | $266,362 | $2.7 million | 2025-12 | |
| Sioux City Public Schools Foundation | Education | 501(c)(3) | 2009 | $259,217 | $670,548 | 2025-12 |
| Lamb Arts LTD | Arts, culture and humanities | 501(c)(3) | 2006 | $256,708 | $932,751 | 2025-12 |
| International Association of Fire Fighters | 501(c)(5) | 1940 | $253,184 | $781,483 | 2026-03 | |
| Benevolent & Protective Order of Elks of the USA | 501(c)(8) | 1951 | $241,432 | $394,220 | 2026-03 | |
| Prairie Haven Inc | Housing and shelter | 501(c)(3) | 1998 | $240,505 | $703,607 | 2025-06 |
| Siouxland Soccer Foundation | Recreation and sports | 501(c)(3) | 1992 | $237,123 | $71,653 | 2024-12 |
| Forest Acres Inc | Human services | 501(c)(3) | 1994 | $231,686 | $227,333 | 2025-06 |
| Catholic Womens League of Sioux City Iowa Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2007 | $228,686 | $403,091 | 2025-12 |
| Floyd Slo Pitch Softball Inc | 501(c)(4) | 1981 | $214,448 | $188,039 | 2025-12 | |
| Special Troopers Adaptive Riding School Inc Stars Inc | 501(c)(3) | 1986 | $208,531 | $552,438 | 2024-12 | |
| Little League Baseball Inc | 501(c)(3) | 1967 | $200,717 | $46,172 | 2025-09 | |
| Native American Child Care Center Inc | Human services | 501(c)(3) | 1981 | $198,432 | $435,078 | 2023-06 |
| Hawkeye Rifle and Pistol Club Incorporated | Recreation and sports | 501(c)(7) | 2025 | $196,373 | $652,375 | 2024-12 |
| Maple Heights Annex Inc | 501(c)(4) | 1996 | $192,711 | $625,635 | 2025-12 | |
| Little League Baseball Inc | 501(c)(3) | 1978 | $189,594 | $71,371 | 2025-12 | |
| BBS Preschool and Child Care | Education | 501(c)(3) | 2011 | $180,279 | $7,772 | 2026-06 |
| Sioux City Public Library Foundation | 501(c)(3) | 1986 | $169,940 | $2.3 million | 2025-06 | |
| Project Rehema Ministries Inc | International, foreign affairs and national security | 501(c)(3) | 2014 | $167,240 | $106,616 | 2025-12 |
| Marys Choice | Human services | 501(c)(3) | 2014 | $162,996 | $201,034 | 2025-12 |
| CC Holdings | Human services | 501(c)(3) | 2025 | $150,500 | $150,500 | 2025-06 |
| Siouxland Wrestling Acadmey | Recreation and sports | 501(c)(3) | 2018 | $147,095 | $8,577 | 2025-12 |
| Junior League of Sioux City | Community improvement and capacity building | 501(c)(3) | 1943 | $144,521 | $876,512 | 2025-05 |
| Sioux City Community Theater | Arts, culture and humanities | 501(c)(3) | 2018 | $140,511 | $263,271 | 2025-07 |
| Woodbury County Conservation Foundation | Environment | 501(c)(3) | 1991 | $136,765 | $97,189 | 2025-06 |
| Arc of Woodbury County | Mental health and crisis intervention | 501(c)(3) | 2019 | $136,545 | $190,461 | 2025-12 |
| Biblical Restoration Ministries Inc | Mental health and crisis intervention | 501(c)(3) | 2006 | $129,601 | $470,239 | 2025-12 |
| Siouxland Chamber Foundation | 501(c)(3) | 1977 | $127,787 | $1.9 million | 2025-09 | |
| Sioux City Museum & Historical Association | Arts, culture and humanities | 501(c)(3) | 1968 | $123,383 | $368,118 | 2025-06 |
| Port of Sioux City Rivercade Association | 501(c)(4) | 1974 | $121,682 | $28,992 | 2025-09 | |
| Iowa Lawyers Assistance Program | Human services | 501(c)(3) | 1994 | $121,405 | $101,210 | 2025-12 |
| Siouxland Foster Closet | Human services | 501(c)(3) | 2021 | $116,999 | $243,606 | 2024-12 |
| Lutheran Asian Ministries | Religion-related | 501(c)(3) | 2025 | $116,463 | $61,277 | 2021-12 |
| Iglesia Restauracion Canaan Corporation | Religion-related | 501(c)(3) | 2015 | $116,143 | $13,305 | 2025-12 |
| Reach Youth and Family Theatre | Arts, culture and humanities | 501(c)(3) | 2023 | $113,709 | $29,846 | 2024-12 |
| Mission of the Messiah | Housing and shelter | 501(c)(3) | 2022 | $110,600 | $25,013 | 2025-12 |
| Friends of the Animal Shelter Inc | Animal-related | 501(c)(3) | 2015 | $110,206 | $107,220 | 2024-12 |
| Women Aware | Human services | 501(c)(3) | 1981 | $103,992 | $137,877 | 2025-06 |
| Boys and Girls Home of Nebraska Inc | Human services | 501(c)(3) | 1997 | $103,563 | $170,939 | 2025-12 |
| Siouxland Construction Alliance | 501(c)(6) | 1988 | $101,685 | $58,360 | 2025-12 | |
| Fire Foundation of Northwest Iowa | Education | 501(c)(3) | 2021 | $101,170 | $114,349 | 2025-06 |
| Sioux City Westside Connection | Recreation and sports | 501(c)(3) | 2023 | $98,673 | $92,900 | 2025-12 |
| Wildlife Lodge & Clinic | Animal-related | 501(c)(3) | 2002 | $97,047 | $543,462 | 2026-03 |
| Siouxland Sharks Swimming Club | 501(c)(3) | 2016 | $96,876 | $16,197 | 2025-12 | |
| Siouxland Community Health Foundation | Health care | 501(c)(3) | 1994 | $94,935 | $372,468 | 2024-12 |
| Sioux City Conservatory of Music | Arts, culture and humanities | 501(c)(3) | 2012 | $93,271 | $305,772 | 2025-12 |
| North Stars Band Inc | Arts, culture and humanities | 501(c)(3) | 2000 | $91,672 | $72,342 | 2025-05 |
| Stars Booster Club | Recreation and sports | 501(c)(3) | 2023 | $90,631 | $11,096 | 2025-12 |
| Ancient and Effervescent Order Ofthe Little Yellow Dog | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2007 | $90,499 | $162,159 | 2025-12 |
| Walt Fiegel Foundation | Education | 501(c)(3) | 2007 | $90,181 | $8,900 | 2025-12 |
| Iowas West Coast Initiative | Community improvement and capacity building | 501(c)(3) | 2022 | $89,725 | $84,155 | 2025-06 |
| Saders Inc | Recreation and sports | 501(c)(3) | 2014 | $85,649 | $97,445 | 2025-12 |
| Support Siouxland Soldiers | Public and societal benefit | 501(c)(3) | 2007 | $84,446 | $217,589 | 2025-06 |
| Pho-Mon Buddhist Temple of Siouxland | Religion-related | 501(c)(3) | 1996 | $84,417 | $844,475 | 2025-12 |
| Copperstone Development | Human services | 501(c)(3) | 2025 | $83,892 | $43,645 | 2025-12 |
| Sioux City Scottish Rite Buildingpreservation Corporation | Arts, culture and humanities | 501(c)(3) | 2008 | $82,802 | $1 million | 2025-12 |
| Buy Fresh Buy Local - Siouxland | Health care | 501(c)(3) | 2014 | $81,243 | $34,320 | 2022-12 |
| Sunrise Retirement Community Foundation | Housing and shelter | 501(c)(3) | 2014 | $79,460 | $437,081 | 2025-12 |
| Sioux City Jewish Cemetary Association | 501(c)(13) | 1992 | $77,634 | $577,509 | 2025-12 | |
| Siouxland Pickleball Association | Recreation and sports | 501(c)(3) | 2020 | $76,743 | $74,373 | 2025-12 |
| Abu Bekr Shriners Holding Corporation | Community improvement and capacity building | 501(c)(2) | 2010 | $75,636 | $341,709 | 2024-12 |
| Clara Latham Memorial Park Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2005 | $70,025 | $46,097 | 2025-12 |
| Mid America Transportation & Aviation Museum | Arts, culture and humanities | 501(c)(3) | 1992 | $68,876 | $3.1 million | 2025-04 |
| Sioux City Future Stars | Youth development | 501(c)(3) | 2019 | $65,437 | $36,060 | 2024-12 |
| Ann Rehan Goebel Foundation | Education | 501(c)(3) | 2024 | $65,148 | $110,136 | 2025-12 |
| Association of Talent Acquisition Professionals | Community improvement and capacity building | 501(c)(6) | 2017 | $65,075 | $42,277 | 2023-12 |
| National Association of Letter Carriers | 501(c)(5) | $62,825 | $45,656 | 2025-12 | ||
| Flux Dance Company | Arts, culture and humanities | 501(c)(3) | 2016 | $60,682 | $157,173 | 2025-12 |
| International Association of Lions Clubs | 501(c)(4) | 1953 | $60,187 | $882,610 | 2025-06 | |
| Glee Fielding Irrv Trust Fbo | Animal-related | 501(c)(3) | 2020 | $57,970 | $608,932 | 2025-12 |
| Raider Youth Athletics | Recreation and sports | 501(c)(3) | 2024 | $55,500 | $46,160 | 2025-12 |
| Urban Native Center | Arts, culture and humanities | 501(c)(3) | 2019 | $53,344 | $3,010 | 2024-12 |
| Rotary International | 501(c)(4) | 1942 | $52,380 | $52,925 | 2025-06 | |
| Iowa Music Educators Association | 501(c)(3) | 1978 | $50,956 | $47,115 | 2025-06 | |
| Hope Ministry Enterprises | Religion-related | 501(c)(3) | 2020 | $50,000 | $59,073 | 2025-12 |
| Gelatin Manufacturers Institute of America Inc | Community improvement and capacity building | 501(c)(6) | 2020 | $49,990 | $73,226 | 2023-12 |
| Indian Youth of America Inc | Recreation and sports | 501(c)(3) | 1979 | $48,773 | $82,910 | 2024-12 |
| Siouxland Heritage Foundation | Arts, culture and humanities | 501(c)(3) | 2001 | $47,218 | $25,828 | 2025-06 |
| United Brotherhood of Carpenters & Joiners of America | 501(c)(5) | 1970 | $40,866 | $275,834 | 2025-06 | |
| Communication Workers of America | 501(c)(5) | 1951 | $39,007 | $139,509 | 2025-09 | |
| Vangarde Arts | Arts, culture and humanities | 501(c)(3) | 2014 | $38,693 | $7,914 | 2024-12 |
| Sioux City Fast Pitch Softball Association Inc | Human services | 501(c)(3) | 2024 | $35,680 | $60,332 | 2025-12 |
| Ronald Oakley Barkl Memorial Scholarship Trust Security Natl Ba | 501(c)(3) | 1957 | $32,055 | $298,466 | 2025-12 | |
| Red Sky Nation - Mmir | Mental health and crisis intervention | 501(c)(3) | 2025 | $30,876 | $29,985 | 2025-12 |
| Midwest Volleyball Power | Recreation and sports | 501(c)(3) | 2012 | $17,476 | $161,895 | 2025-12 |
| Leeds Community Club Inc | Community improvement and capacity building | 501(c)(3) | 2023 | $16,860 | $13,947 | 2024-12 |
| Shepherds Garden | Recreation and sports | 501(c)(3) | 2011 | $15,639 | $383,268 | 2025-12 |
| Sertoma Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1964 | $13,635 | $39,898 | 2025-06 |
| Siouxland Zen Inc | Religion-related | 501(c)(3) | 2026 | $8,050 | $526 | 2025-12 |
| Pta Iowa Congress | 501(c)(3) | 1943 | $7,957 | $54,792 | 2025-06 | |
| Ada Frum Irrv Trust Fbo Siouxland Humane Society | 501(c)(91) | $6,104 | $182,873 | 2025-12 | ||
| Big Iron Charitable Foundation | Community improvement and capacity building | 501(c)(3) | 2022 | $6,000 | $382 | 2024-12 |
| Castle On the Hill Association | Arts, culture and humanities | 501(c)(3) | 1977 | $557 | $24,450 | 2024-12 |
| Sanford Center Building Inc | 501(c)(3) | 1952 | $1 | $5,000 | 2025-12 | |
| 215 Recovery Foundation | Mental health and crisis intervention | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| 4 His Glory | Public and societal benefit | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| A G & Rosalee W Ireland Scholarship Fund Trust Uw | 501(c)(3) | 1984 | $125,539 | 2025-10 | ||
| A H N Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2002 | $0 | $0 | 2025-12 |
| Aalfs Family Foundation | 501(c)(3) | 1981 | $2 million | 2025-12 | ||
| Abu Bekr Shriners Group Return | 501(c)(10) | 1940 | $0 | $0 | 2024-12 | |
| African Friends Shelter | Housing and shelter | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Aglow International | 501(c)(3) | 1973 | $0 | $0 | 2025-12 | |
| Aglow International | 501(c)(3) | 1973 | $0 | $0 | 2025-12 | |
| American Chemical Society | 501(c)(3) | 1946 | $0 | $0 | 2025-12 | |
| American Dental Assistants Association Northwest District | 501(c)(6) | 1969 | $0 | $0 | 2025-12 | |
| American Federation of Labor & Congress of Industrial Orgs | 501(c)(5) | 1956 | $0 | $0 | 2024-12 | |
| American Federation of State County & Municipal Employees | 501(c)(5) | 1957 | $0 | $0 | 2025-12 | |
| American Federation of State County & Municipal Employees | 501(c)(5) | 1957 | $0 | $0 | 2025-12 | |
| American Federation of State County & Municiple Employees | 501(c)(5) | 1957 | $0 | $0 | 2025-12 | |
| American Heartland Railroad Society | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| American Legion | 501(c)(19) | 1938 | $0 | $0 | 2025-12 | |
| American Legion | 501(c)(19) | 1946 | $0 | $0 | 2025-12 | |
| American Legion Auxiliary | 501(c)(19) | 1946 | $0 | $0 | 2025-12 | |
| American Postal Workers Union | 501(c)(5) | 1973 | $0 | $0 | 2024-12 | |
| American Togolese Community | Human services | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| Ancient Free & Accepted Masons of Iowa | 501(c)(10) | 1941 | $0 | $0 | 2025-12 | |
| Ancient Free & Accepted Masons of Iowa | 501(c)(10) | 1972 | $0 | $0 | 2025-12 | |
| Ancient Free & Accepted Masons of Iowa | 501(c)(10) | 1941 | $0 | $0 | 2025-12 | |
| Ancient Free & Accepted Masons of Iowa | 501(c)(10) | 1941 | $0 | $0 | 2025-12 | |
| Apostolic Church International of Micronesia | Religion-related | 501(c)(3) | 2007 | |||
| Apostolic Faith Tabernacle | Religion-related | 501(c)(3) | 1998 | |||
| Art Sux | Arts, culture and humanities | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Association for Computing Machinery | 501(c)(3) | 1968 | ||||
| Association of Civilian Technicians Inc | Employment | 501(c)(5) | 2003 | $0 | $0 | 2023-12 |
| Association of Notre Dame Clubs Inc | 501(c)(3) | 1983 | $0 | $0 | 2026-06 | |
| Bahais of Plymouth County | 501(c)(3) | 1995 | ||||
| Become Best Foundation Inc | Mental health and crisis intervention | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Being Better Inc | Religion-related | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Berenstein Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1997 | $225,851 | 2025-12 | |
| Bethany Lutheran Church | 501(c)(3) | 1941 | ||||
| Bible Missionary Church Inc Sioux City | 501(c)(3) | 1957 | ||||
| Big Twelve Youth Developmentprogram Inc | Youth development | 501(c)(3) | 2008 | $0 | $0 | 2025-12 |
| Bishop Heelan Catholic Schools | 501(c)(3) | 1946 | ||||
| Bomgaars Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $5.6 million | 2024-12 | |
| Boys & Girls Clubs of America | 501(c)(4) | 1999 | $0 | $0 | 2020-12 | |
| Boys and Girls Home and Family Services Inc | 501(c)(3) | 1990 | $0 | $1 | 2025-12 | |
| Boys and Girls Home of Alaska Inc | Mental health and crisis intervention | 501(c)(3) | 2007 | $0 | $0 | 2024-12 |
| Brotherhood of Locomotive Engineers and Trainmen | 501(c)(5) | 1940 | $0 | $0 | 2025-12 | |
| Butterfly Nation | Human services | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Calvary Lutheran Church | 501(c)(3) | 1941 | 2011-12 | |||
| Can Do Kidz | Human services | 501(c)(3) | 2024 | $1 | 2024-12 | |
| Cathedral Arts Guild | 501(c)(3) | 1946 | ||||
| Cathedral of the Epiphany | 501(c)(3) | 1946 | 2014-06 | |||
| Catherine Birzle Education Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2005 | $498,907 | 2025-12 | |
| Catholic Daughters of the Americas | 501(c)(3) | 1946 | ||||
| Central Assembly of God | 501(c)(3) | 1964 | 2006-12 | |||
| Central Baptist Church of Sioux City Iowa | Religion-related | 501(c)(3) | 2014 | 2013-12 | ||
| Cheer Sux | Recreation and sports | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Chesterman Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $9.3 million | 2025-12 | |
| Choose Ministry | Religion-related | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Christian Life Fellowship of Sioux City Iowa | 501(c)(3) | 1981 | ||||
| Clifford E Tufty and Jean V Tufty Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1998 | $2 | 2024-12 | |
| Community Action Housing Inc | Housing and shelter | 501(c)(3) | 1996 | $0 | $0 | 2025-09 |
| Cornelius Duggan Scholarship Trust | 501(c)(92) | $4 million | 2025-12 | |||
| Cornerstone World Outreach | 501(c)(3) | 1983 | 2012-12 | |||
| Cosmopolitan International | Public and societal benefit | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Crime Stoppers | Crime and legal-related | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Crouch Education Foundation | Education | 501(c)(3) | 1998 | $4,412 | 2025-11 | |
| DRC Community of Siouxland Inc | Community improvement and capacity building | 501(c)(3) | 2024 | |||
| Dakota County Nebraska Housing Trus T Fund | Housing and shelter | 501(c)(3) | 2025 | |||
| Daughters of the Nile | 501(c)(8) | 1972 | $0 | $0 | 2026-03 | |
| David and Beverly Feiges Foundation | 501(c)(3) | 1992 | $266,323 | 2025-09 | ||
| Dayspring - Sonshine Incorp | 501(c)(3) | 1978 | ||||
| Debre Salem Medianalem & Metmike Melekot Kidus Yohannes Ethiopian O | Religion-related | 501(c)(3) | 2023 | |||
| Delta Kappa Gamma Society International | 501(c)(6) | 1965 | $0 | $0 | 2026-06 | |
| Diane and Brent Rosenthal Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2005 | $290,447 | 2025-11 | |
| Diocese of Sioux City | 501(c)(3) | 1946 | ||||
| Diry Sioux Jokerz Car Club | Public and societal benefit | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Dougs Donors Inc | Health care | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| East High Raider Spirit Foundation | Education | 501(c)(3) | 2023 | $13,442 | 2025-12 | |
| Ebam Inc | International, foreign affairs and national security | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Emmanuel Evangelical Church Sioux City Iowa American Inc | 501(c)(3) | 1974 | ||||
| Eritrean Orthodox Tewahdo St Abune Aregawi Church | Religion-related | 501(c)(3) | 2024 | |||
| Evangelical Lutheran Church in America Woodbury County | 501(c)(3) | 1988 | ||||
| Evangelical Orthodox Church | 501(c)(3) | 1982 | ||||
| Expanded Healing Inc | Health care | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Faith Christian Fellowship of Sioux City | 501(c)(3) | 1980 | ||||
| Faith Lutheran Church | 501(c)(3) | 1941 | ||||
| Faith Overflow Ministries | Education | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Family Worship Center of Sioux Cityinc | Religion-related | 501(c)(3) | 2009 | |||
| Fellowship Club of Sioux City Iowa | Mental health and crisis intervention | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Fire Rescue Family Support | Public and societal benefit | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| First Assembly of God | 501(c)(3) | 1964 | ||||
| First Christian Church | 501(c)(3) | 1951 | ||||
| First Evangelical Free Church of Sioux City Iowa | 501(c)(3) | 1965 | ||||
| First Presbyterian Church | 501(c)(3) | 1964 | ||||
| Floyd Youth Softball | Recreation and sports | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Food 4 Kids | Food, agriculture and nutrition | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Friends of Stone Park | Recreation and sports | 501(c)(3) | 2004 | $0 | $0 | 2024-12 |
| Friends of the Sioux City Police Department | Public safety, disaster preparedness and relief | 501(c)(3) | 2007 | $0 | $0 | 2025-12 |
| Friends of the Sioux City Public Library | 501(c)(3) | 1990 | $0 | $0 | 2025-12 | |
| Fuente de Agua Viva | 501(c)(3) | 1964 | ||||
| Gilchrist Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1999 | $34.4 million | 2025-12 | |
| Girls of 68 Junior Pioneers | Arts, culture and humanities | 501(c)(3) | 1999 | $0 | $0 | 2025-08 |
| Gleeson Foundation | 501(c)(3) | 1967 | $3.7 million | 2025-12 | ||
| Glendale Community Baptist Church | 501(c)(3) | 1955 | ||||
| Grace Lutheran Church | Religion-related | 501(c)(3) | 1966 | |||
| Great Plains Athletic Conference | Recreation and sports | 501(c)(3) | 2026 | |||
| Great Plains Radio Theatre Project | Arts, culture and humanities | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Greater Sioux City Press Club | Community improvement and capacity building | 501(c)(6) | 2008 | $0 | $0 | 2025-12 |
| Greenberg Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2009 | $449,373 | 2024-12 | |
| Growing Community Connections | Youth development | 501(c)(3) | 2014 | $0 | $0 | 2026-06 |
| H A R T Foundation Inc | Recreation and sports | 501(c)(3) | 2021 | $0 | $0 | 2022-12 |
| Haitian Hope Foundation | Community improvement and capacity building | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Harmony Chapter No 22 Order of the Eastern Star Inc | Mutual and membership benefit | 501(c)(8) | 2016 | $0 | $0 | 2026-05 |
| Harold L Darner Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1999 | $401,956 | 2025-12 | |
| Harvest Inc | Food, agriculture and nutrition | 501(c)(3) | 2021 | $0 | $0 | 2023-12 |
| Haus of Qui | Arts, culture and humanities | 501(c)(3) | 2023 | $0 | $0 | 2024-09 |
| Health Incorporated | Human services | 501(c)(3) | 2000 | $1 | 2025-06 | |
| Holiness Church | Religion-related | 501(c)(3) | 2019 | $0 | $0 | 2024-12 |
| Holmes Film | Arts, culture and humanities | 501(c)(3) | 2020 | $0 | $0 | 2024-12 |
| Holy Cross Catholic Parish | 501(c)(3) | 1946 | ||||
| Holy Trinity Greek Orthodox Church | Religion-related | 501(c)(3) | 2024 | |||
| Homehelp for Heroes | Human services | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Iglesia Bautista Hispana Monte Sinai de Sioux City Ia | Religion-related | 501(c)(3) | 2009 | |||
| Iglesia Cristiana La Roca | Religion-related | 501(c)(3) | 2022 | |||
| Iglesia Cristiana Remanente Loving Faith Ministries | Religion-related | 501(c)(3) | 2024 | |||
| Iglesia Evangelica Pentecostes Principe de Paz | Religion-related | 501(c)(3) | 2011 | |||
| Iglesia Fe Y Poder | Religion-related | 501(c)(3) | 2010 | |||
| Iglesia Pentecostes Lirio Del Valle | Religion-related | 501(c)(3) | 2012 | |||
| Iglesia Restauracion Canaan Corporation | Religion-related | 501(c)(3) | 2012 | |||
| Iglesia de Cristo Ministerios Ebenezer Shalom Inc | Religion-related | 501(c)(3) | 2023 | |||
| Independent Assemblies of God | 501(c)(3) | 1964 | ||||
| Indigenous Society Inc | Arts, culture and humanities | 501(c)(3) | 2025 | $0 | $0 | 2024-12 |
| Innovate Siouxland Inc | Community improvement and capacity building | 501(c)(3) | 2026 | |||
| International Association of Machinists & Aerospace Workers | 501(c)(5) | 1940 | $0 | $0 | 2025-12 | |
| International Association of Sheet Metal Air Rail & Transportation | Employment | 501(c)(5) | 2015 | $0 | $0 | 2025-12 |
| Intersection A Cappella | Arts, culture and humanities | 501(c)(7) | 2025 | |||
| Interstate Veterinary Medical Association Inc | Education | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| Iowa Aams Chapter Inc | Community improvement and capacity building | 501(c)(6) | 2016 | $0 | $0 | 2025-12 |
| Iowa Association of School Music | 501(c)(6) | 1985 | $0 | $0 | 2026-06 | |
| Iowa Congress of Parents and Teachers Inc | 501(c)(3) | 1943 | $0 | $0 | 2026-07 | |
| Iowa Skatepark Organization | Recreation and sports | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| James M Crow Foundation | Education | 501(c)(3) | 2020 | $0 | $0 | 2024-10 |
| Jeffers Memorial Holiness Camp | 501(c)(3) | 1959 | ||||
| John L Thompson Charitable Trust | 501(c)(92) | $811,587 | 2025-12 | |||
| Kingdom Ministries International Inc | Religion-related | 501(c)(3) | 2022 | |||
| Knights Foundation | Education | 501(c)(3) | 2021 | $0 | $0 | 2024-12 |
| Knights Templar of the United States of America | 501(c)(10) | 1964 | $0 | $0 | 2026-06 | |
| Knights of Columbus | 501(c)(8) | 1940 | $0 | $0 | 2025-12 | |
| Knights of Columbus | 501(c)(8) | 1940 | $0 | $0 | 2025-12 | |
| Knights of Columbus | 501(c)(8) | 1940 | $0 | $0 | 2024-12 | |
| Knights of Columbus | 501(c)(8) | 1940 | $0 | $0 | 2026-01 | |
| Kol Tov Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2015 | $728,786 | 2025-12 | |
| La Roca Community Development Center Inc | Community improvement and capacity building | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Lawton-Bronson Booster Club Inc | Education | 501(c)(3) | 2026 | |||
| Leadership Sioux City | Education | 501(c)(3) | 2020 | $0 | $0 | 2026-05 |
| League of Women Voters of Iowa | 501(c)(3) | 2018 | $0 | $0 | 2026-05 | |
| Lee Legacy | Education | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Leeds Elementary Booster Club | Education | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Leo B Riley Family Scholarship Fund | 501(c)(3) | 2002 | $111,725 | 2025-07 | ||
| Leonhard E Baak Charitable Trust | 501(c)(92) | $2.9 million | 2025-12 | |||
| Loess Hills Audubon Society | Animal-related | 501(c)(3) | 2000 | $0 | $0 | 2025-12 |
| Loess Hills Elementary Pto | Education | 501(c)(3) | 2025 | |||
| Loving Faith Ministries | 501(c)(3) | 1992 | ||||
| Lucile@latta Charitable Trust C/o the Security National Bank of | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1997 | $3.8 million | 2025-12 | |
| Magnhild N Madsen Charitable Trust | Education | 501(c)(3) | 2025 | $93,664 | 2025-12 | |
| Mahoney-Hill Charitable Fund Trust | 501(c)(3) | 1955 | $503,190 | 2025-12 | ||
| Margaret Martin Everist Foundation Trust | 501(c)(3) | 1990 | $1.6 million | 2025-12 | ||
| Marine Corps League | 501(c)(4) | 1946 | $0 | $0 | 2026-06 | |
| Marine Corps League | 501(c)(4) | 1946 | $0 | $0 | 2026-06 | |
| Marthas Mission Siouxland | Education | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Mater Dei Catholic Parish | 501(c)(3) | 1946 | ||||
| Meis Dental Education Legacy Inc | Education | 501(c)(3) | 2021 | $0 | $0 | 2024-12 |
| Michael L and Margie A Bennett Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2013 | $240,167 | 2025-12 | |
| Ministerio Internacional Dios Es Am Or Inc | Religion-related | 501(c)(3) | 2026 | |||
| Mision Evangelica Monte Sion | Religion-related | 501(c)(3) | 2025 | |||
| Missouri River Boat Club | Recreation and sports | 501(c)(7) | 2007 | $0 | $0 | 2025-12 |
| Missouri River Choral Society | Arts, culture and humanities | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Missouri Valley African Violet Council | Environment | 501(c)(3) | 2010 | $0 | $0 | 2026-05 |
| Morning Side Baptist Church | 501(c)(3) | 1972 | ||||
| Morningside Assembly of God | 501(c)(3) | 1964 | ||||
| Mosque of Sioux City Inc | Religion-related | 501(c)(3) | 2000 | |||
| Mt Zion Baptist Church of Sioux City Iowa | Religion-related | 501(c)(3) | 2000 | |||
| Nakweni Sisters Womens Empowerment Project | International, foreign affairs and national security | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Nameless Project | Human services | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| National Air Traffic Controllers Association | 501(c)(5) | 1990 | $0 | $0 | 2025-12 | |
| National Organization for Women Inc | 501(c)(4) | 1979 | $0 | $0 | 2024-12 | |
| National Society of the Daughters of the American Revolution | 501(c)(3) | 1949 | $0 | $0 | 2025-12 | |
| Native Youth Standing Strong | Youth development | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Nativity of Our Lord Jesus Christ | 501(c)(3) | 1946 | 2014-06 | |||
| Needle North Foundation | Human services | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| New Life Lutheran Church of Sergeant Bluff Iowa | 501(c)(3) | 1988 | ||||
| New Life in Christ Inc | Religion-related | 501(c)(3) | 2023 | |||
| Odella S Baak Charitable Trust TW | 501(c)(92) | $542,183 | 2025-12 | |||
| One Combat Academy Inc | Community improvement and capacity building | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Open Bible Standard Churches Inc | 501(c)(3) | 1971 | ||||
| Opticians Association of Iowa Inc | Health care | 501(c)(6) | 2017 | $0 | $0 | 2025-12 |
| Optimist International | 501(c)(4) | 1958 | $0 | $0 | 2025-09 | |
| Parroquia Lutheran El Renancimiento | 501(c)(3) | 1988 | ||||
| Peace Makers Institute Inc | Civil rights, social action and advocacy | 501(c)(4) | 2009 | $0 | $0 | 2025-12 |
| Peace Reform Church | 501(c)(3) | 1986 | ||||
| Perley Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $606,963 | 2025-12 | |
| Perry Creek Nursery School Inc | 501(c)(3) | 1964 | ||||
| Perry V Haines Foundation | 501(c)(3) | 1994 | $36 | 2025-12 | ||
| Pflag Siouxland | 501(c)(3) | 1994 | $0 | $0 | 2023-09 | |
| Pokey & Colin Jensen Foundation | 501(c)(3) | 1983 | $1 million | 2025-12 | ||
| Professional Staff Association of Area Education Agency 12 | 501(c)(5) | 1978 | $0 | $0 | 2024-12 | |
| Projects for Patriots Inc | Public and societal benefit | 501(c)(3) | 2022 | |||
| Psi Chi the National Honor Society in Psychology | 501(c)(3) | 1957 | $0 | $0 | 2025-06 | |
| Psi Chi the National Honor Society in Psychology | 501(c)(3) | 1957 | $0 | $0 | 2025-06 | |
| R L & Ethel Stubbs Scholarship Trust | 501(c)(3) | 1992 | $892,079 | 2025-12 | ||
| Radiant Life Community Church | Religion-related | 501(c)(3) | 2016 | |||
| Redeemer Lutheran Church | 501(c)(3) | 1941 | ||||
| Regional Bahai Council of the Prairie States | 501(c)(3) | 1995 | ||||
| Rehoboth Evangelical Church of Sioux City | Religion-related | 501(c)(3) | 2024 | |||
| Reorganized Church of Jesus Christ of Latter Day Saints Sioux City | 501(c)(3) | 1946 | ||||
| Resurrection Lutheran Church | Religion-related | 501(c)(3) | 2006 | |||
| River City Anglers Inc | 501(c)(4) | 1988 | $0 | $0 | 2025-12 | |
| Riverside Lutheran Church | 501(c)(3) | 1988 | ||||
| Riverz Edge Ministries | Religion-related | 501(c)(3) | 2004 | |||
| Road Runners Club of America | 501(c)(3) | 1976 | $0 | $0 | 2025-12 | |
| Ronald B and Joan B Krage Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $371,506 | 2025-12 | |
| Sacred Heart Catholic Church | 501(c)(3) | 1946 | 2014-06 | |||
| Samuel and Gussie Bernstein Foundation Rvoc Trust | 501(c)(3) | 1989 | $9.4 million | 2026-03 | ||
| Save the Airbase Chapel | Arts, culture and humanities | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Security National Bank Charitable Foundation Inc | 501(c)(3) | 1996 | $1.9 million | 2025-12 | ||
| Serra International | Religion-related | 501(c)(3) | 2020 | $0 | $0 | 2025-05 |
| Shaare Zion Congregation | 501(c)(3) | 1952 | ||||
| Sheer Family Memorial Education Foundation Inc | Education | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Showtime Hoopers Inc | Recreation and sports | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Shriners International | 501(c)(10) | 1940 | ||||
| Shriners International | 501(c)(10) | 1940 | ||||
| Shriners International | 501(c)(10) | 1940 | ||||
| Shriners International | 501(c)(10) | 1940 | ||||
| Sigma Theta Tau International Inc | 501(c)(3) | 1954 | $0 | $0 | 2025-06 | |
| Sioux City Chamber Music Association | 501(c)(3) | 1979 | $0 | $0 | 2024-10 | |
| Sioux City Community Assistance | Human services | 501(c)(3) | 2020 | $0 | $0 | 2026-06 |
| Sioux City Education Association | 501(c)(5) | $0 | $0 | 2025-08 | ||
| Sioux City Fire & Rescue Historical Society | Arts, culture and humanities | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Sioux City Garden Club | Environment | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Sioux City Growth Organization Inc | Community improvement and capacity building | 501(c)(4) | 2004 | $0 | $0 | 2025-12 |
| Sioux City Hispanic Foursquare Church | 501(c)(3) | 1949 | ||||
| Sioux City Judo and Jujitsu | Recreation and sports | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Sioux City Little League | Recreation and sports | 501(c)(3) | 2026 | |||
| Sioux City Local Labor Management Cooperation Committee | Human services | 501(c)(5) | 2025 | |||
| Sioux City Mariners | Recreation and sports | 501(c)(3) | 2018 | $0 | $0 | 2024-07 |
| Sioux City Minor League Baseball Foundation | Recreation and sports | 501(c)(3) | 2010 | $0 | $0 | 2025-12 |
| Sioux City Moons | Recreation and sports | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Sioux City Police Officers Associat Ion Friends | Youth development | 501(c)(3) | 2026 | $0 | $0 | 2026-06 |
| Sioux City Professional Firefighter S Local 7 Charitable Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2026 | |||
| Sioux City Rotary Club Foundation Inc | Community improvement and capacity building | 501(c)(3) | 2000 | $0 | $0 | 2025-06 |
| Sioux City Tabletop Gamers | Recreation and sports | 501(c)(3) | 2021 | $0 | $0 | 2024-12 |
| Siouxland African Association | 501(c)(3) | 2026 | ||||
| Siouxland Artists Inc | Arts, culture and humanities | 501(c)(3) | 2010 | $0 | $0 | 2025-12 |
| Siouxland Chapter of the Society of Human Resources Manager | Community improvement and capacity building | 501(c)(6) | 2010 | $0 | $0 | 2025-12 |
| Siouxland Christian Booster Club Inc | Education | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Siouxland Christian College & Theological Seminary | 501(c)(3) | 1970 | ||||
| Siouxland Coalition Against Human Trafficking | Civil rights, social action and advocacy | 501(c)(3) | 2016 | $0 | $0 | 2024-12 |
| Siouxland Coalition To End Homelessness | Human services | 501(c)(3) | 2010 | $0 | $0 | 2026-06 |
| Siouxland Community Potluck Coaliti On | Food, agriculture and nutrition | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Siouxland Cyclists Inc | Recreation and sports | 501(c)(3) | 2009 | $0 | $0 | 2024-12 |
| Siouxland Gem & Mineral Society | Education | 501(c)(3) | 2000 | $0 | $0 | 2024-12 |
| Siouxland Immgration Services Inc | Human services | 501(c)(3) | 2026 | |||
| Siouxland Institute of Film Inc | Arts, culture and humanities | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Siouxland Intergroup | Mental health and crisis intervention | 501(c)(3) | 2016 | $0 | $0 | 2024-12 |
| Siouxland Junior Darts Inc | Recreation and sports | 501(c)(3) | 2024 | $0 | $0 | 2025-01 |
| Siouxland Masonic Center Inc | Arts, culture and humanities | 501(c)(3) | 2026 | |||
| Siouxland Oromo Islamic Center | Religion-related | 501(c)(3) | 2016 | |||
| Siouxland Philanthropy | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Siouxland Regional Transit System | Public and societal benefit | 501(c)(3) | 2023 | |||
| Siouxland Robotics Club | Education | 501(c)(3) | 2019 | $0 | $0 | 2024-12 |
| Siouxland Samplers Quilt Guild Inc | Recreation and sports | 501(c)(3) | 2001 | $0 | $0 | 2025-12 |
| Siouxland Spouses Behind the Shield | Public safety, disaster preparedness and relief | 501(c)(3) | 2016 | $0 | $0 | 2024-12 |
| Siouxland Trails Foundation | Recreation and sports | 501(c)(3) | 2004 | $0 | $0 | 2025-12 |
| Siouxland Venture Initiatives | Community improvement and capacity building | 501(c)(6) | 2021 | $0 | $0 | 2025-12 |
| Siouxland Youth Athletics | Recreation and sports | 501(c)(3) | 1987 | $0 | $0 | 2024-12 |
| Siouxland Youth Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2000 | $153,920 | 2025-12 | |
| Siouxland Youth Pool League | Recreation and sports | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Spiritual Assembly of the Bahais of Sioux City | 501(c)(3) | 1995 | ||||
| St Boniface Church | 501(c)(3) | 1946 | 2014-06 | |||
| St John Evangelical Lutheran Church | 501(c)(3) | 1988 | ||||
| St Josephs R C Church | 501(c)(3) | 1946 | ||||
| St Pauls Lutheran Church | 501(c)(3) | 1941 | ||||
| Sto Wahi Quilters Guild | Community improvement and capacity building | 501(c)(3) | 2023 | |||
| Stolen Bases | Recreation and sports | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Sunnybrook Momco | Religion-related | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Sunrise Eastview | Housing and shelter | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Sunrise Hills | Housing and shelter | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Tabernacle Holiness Church | Religion-related | 501(c)(3) | 1999 | |||
| Teammates Mentoring Program | Youth development | 501(c)(3) | 2003 | |||
| Templo Glorioso Amanecer Asamblea de Dios | 501(c)(3) | 1964 | ||||
| The Yanney Family Foundation | 501(c)(3) | 1998 | $32,918 | 2025-07 | ||
| Thriftology | Environment | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Tigger & Irving Jensen Foundation | 501(c)(3) | 1984 | $729,594 | 2025-12 | ||
| Titus Fellowship of Sioux City LTD | Health care | 501(c)(3) | 1967 | $4.9 million | 2025-12 | |
| Toastmasters International | 501(c)(3) | 1945 | $0 | $0 | 2025-12 | |
| Toastmasters International | 501(c)(3) | 1945 | $0 | $0 | 2025-12 | |
| Tri-State Dwi Victim Panel | Crime and legal-related | 501(c)(3) | 2003 | $0 | $0 | 2025-12 |
By cause in Sioux City, IA
- Religion-related 42
- Recreation and sports 37
- Arts, culture and humanities 35
- Human services 35
- Education 29
- Philanthropy, voluntarism and grantmaking foundations 26
- Community improvement and capacity building 21
- Health care 15
- Housing and shelter 12
- Mental health and crisis intervention 11
- Youth development 9
- Public and societal benefit 9
- Animal-related 6
- Environment 5
- International, foreign affairs and national security 4
- Public safety, disaster preparedness and relief 4
- Employment 4
- Food, agriculture and nutrition 3
- Mutual and membership benefit 3
Nonprofits in every city of the state
Read from the IRS Exempt Organizations Business Master File, updated by the IRS on October 24, 2026 and rebuilt here every morning. Revenue and assets are from each organization's latest filing as the IRS lists it; the IRS record is the official one. Organizations only: no people are named on these pages.