Data / Nonprofits / Iowa / Oskaloosa
Nonprofits in Oskaloosa, IA: 122 registered with the IRS
122 nonprofits are registered with the IRS in Oskaloosa, IA, 95 of them 501(c)(3) charities; the 40 that report revenue took in $76.5 million. The largest by revenue: William Penn University ($51.4 million), Mahaska Rural Water System Inc ($3.5 million), Pepsi Cola Bottling Company Employees Health Plan Trust ($2.8 million). Most common causes: education (13), recreation and sports (12), human services (9).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| William Penn University | Education | 501(c)(3) | 1939 | $51.4 million | $86.2 million | 2025-06 |
| Mahaska Rural Water System Inc | 501(c)(12) | 1976 | $3.5 million | $20.4 million | 2025-12 | |
| Pepsi Cola Bottling Company Employees Health Plan Trust | 501(c)(9) | 1984 | $2.8 million | $175,916 | 2025-10 | |
| Mahaska County Employees Health Plan Trust | 501(c)(9) | 1984 | $2.6 million | $2 million | 2025-06 | |
| Mahaska County YMCA | Human services | 501(c)(3) | 1954 | $2.3 million | $13.4 million | 2025-08 |
| Oskaloosa Society for Christian Instruction | Education | 501(c)(3) | 1972 | $2.2 million | $5 million | 2025-06 |
| Mahaska Community Recreation Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2000 | $2 million | $5.4 million | 2024-12 |
| Crisis Intervention Services | Human services | 501(c)(3) | 1998 | $1.2 million | $1.1 million | 2025-06 |
| Southern Iowa Fair and Exposition Oskaloosa Iowa | 501(c)(5) | 1940 | $885,418 | $592,623 | 2025-09 | |
| Mahaska Futureview Inc | Arts, culture and humanities | 501(c)(3) | 1992 | $848,116 | $8.4 million | 2024-12 |
| Heart of America Athletic Conference | Education | 501(c)(3) | 2010 | $732,241 | $252,651 | 2025-06 |
| Love Inc of Mahaska County | Human services | 501(c)(3) | 1998 | $705,926 | $483,317 | 2024-12 |
| Knights of Columbus | 501(c)(8) | 1940 | $502,628 | $395,188 | 2025-06 | |
| George Daily Charitable Trust | 501(c)(3) | 1990 | $498,428 | $11.8 million | 2024-12 | |
| Legacy of Grace School Tuition Organization Inc | Education | 501(c)(3) | 2006 | $482,984 | $556,813 | 2025-06 |
| United Way of Mahaska County | 501(c)(3) | 1963 | $480,602 | $735,042 | 2024-12 | |
| Friends of the Auditorium | Arts, culture and humanities | 501(c)(3) | 1998 | $469,806 | $78,198 | 2025-08 |
| Mahaska Hospital Foundation | Health care | 501(c)(3) | 1994 | $370,658 | $1.6 million | 2024-12 |
| Stephen Memorial Animal Shelter Inc | Animal-related | 501(c)(3) | 2020 | $321,798 | $23,555 | 2025-06 |
| Forest Cemetery Association | 501(c)(13) | 1943 | $297,743 | $544,746 | 2024-12 | |
| South Central Iowa Independent Living Center Inc | Education | 501(c)(3) | 1997 | $233,493 | $17,744 | 2024-12 |
| Mahaska County Historical Society | 501(c)(3) | 1959 | $217,091 | $2 million | 2024-12 | |
| Iowa Farm Bureau Federation | 501(c)(5) | 1945 | $161,845 | $1.6 million | 2025-12 | |
| Sonshine Preschool Inc | Education | 501(c)(3) | 2014 | $157,825 | $137,754 | 2025-06 |
| Mahaska County Outreach Inc | Human services | 501(c)(3) | 1986 | $156,631 | $439,144 | 2025-03 |
| Iowa SCTP | Recreation and sports | 501(c)(3) | 2012 | $153,805 | $349,105 | 2025-12 |
| Friends Development Fund Inc | 501(c)(3) | 1979 | $153,440 | $1.8 million | 2025-12 | |
| Mahaska Hospice Auxiliary | Human services | 501(c)(3) | 2016 | $132,376 | $134,677 | 2025-06 |
| American Legion | 501(c)(19) | 1946 | $129,800 | $206,782 | 2025-06 | |
| Izaak Walton League of America Inc | 501(c)(3) | 1951 | $96,216 | $122,467 | 2025-12 | |
| Golden Goose Club Inc | Community improvement and capacity building | 501(c)(3) | 2015 | $88,975 | $79,265 | 2024-12 |
| Fraternal Order of Eagles | 501(c)(8) | 1991 | $71,252 | $66,394 | 2026-05 | |
| Oskaloosa Indian Booster Club LTD | Education | 501(c)(3) | 2010 | $62,161 | $108,092 | 2024-12 |
| Benevolent & Protective Order of Elks of the USA | 501(c)(8) | 1951 | $60,320 | $71,872 | 2025-03 | |
| Fine Arts and Cultural Events of Mahaska County | Arts, culture and humanities | 501(c)(3) | 2015 | $59,466 | $38,536 | 2024-12 |
| Mahaska County Community Emergency Response Team | Public safety, disaster preparedness and relief | 501(c)(3) | 2016 | $43,560 | $47,851 | 2025-12 |
| Rotary International | 501(c)(4) | 1942 | $42,788 | $41,199 | 2025-06 | |
| Oskaloosa Band Boosters Inc | 501(c)(3) | 1972 | $39,987 | $100,602 | 2025-12 | |
| Stephen Animal Shelter Foundation Inc | Animal-related | 501(c)(3) | 2017 | $25,153 | $1.9 million | 2024-12 |
| Southeast Iowa SHRM Chapter | Employment | 501(c)(4) | 2025 | $2,779 | $15,739 | 2025-12 |
| Ai Equity Alliance Corp | Education | 501(c)(3) | 2025 | |||
| Altrusa International Inc | 501(c)(4) | 1944 | $0 | $0 | 2025-12 | |
| American Legion Auxiliary | 501(c)(19) | 1946 | $0 | $0 | 2025-12 | |
| Ancient Free & Accepted Masons of Iowa | 501(c)(10) | 1972 | $0 | $0 | 2025-12 | |
| Ark Project Us | Religion-related | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Association for Computing Machinery | 501(c)(3) | |||||
| Auxiliary of Mahaska Hospital Auxiliary | 501(c)(3) | 2020 | $0 | $0 | 2025-12 | |
| Beacon Cemetery Association | 501(c)(13) | 1952 | $0 | $0 | 2025-08 | |
| Bethel Christian Reformed Church | 501(c)(3) | 1975 | ||||
| Bethesda House Inc | 501(c)(3) | 2011 | $0 | $0 | 2025-09 | |
| Brouwer Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2021 | $1.4 million | 2025-12 | |
| Christian Homeschool Assistance Program | 501(c)(3) | 2021 | $0 | $0 | 2025-12 | |
| Columbiettes Inc | 501(c)(10) | 1977 | $0 | $0 | 2025-08 | |
| Crookham Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2005 | $2.1 million | 2025-12 | |
| Department of Iowa Auxiliary To the Veterans of Foreign Wars | Public and societal benefit | 501(c)(19) | 2009 | $0 | $0 | 2025-06 |
| Evangel Mission Outreach Church Inc | 501(c)(3) | 1989 | ||||
| First Assembly of God | 501(c)(3) | 1964 | 2013-12 | |||
| First Baptist Church | 501(c)(3) | 1955 | ||||
| First Christian Church | 501(c)(3) | 1951 | ||||
| First Christian Reformed Church of Oskaloosa | 501(c)(3) | 1975 | ||||
| Fraternal Order of Eagles | 501(c)(8) | 1991 | $0 | $0 | 2025-05 | |
| Friends of the Oskaloosa Public Library | Education | 501(c)(3) | 2000 | $0 | $0 | 2025-09 |
| Fund Run | Community improvement and capacity building | 501(c)(3) | 2026 | |||
| Good News Chapel | 501(c)(3) | 1963 | ||||
| Good News Chapel Christian Reformed Church | 501(c)(3) | 1975 | ||||
| Grace Lutheran Church | 501(c)(3) | 1966 | ||||
| Happily Ever After Cat Rescue and Education Center | Animal-related | 501(c)(3) | 2025 | $0 | $0 | 2025-09 |
| Hawkeye Fly Fishing Association Inc | Recreation and sports | 501(c)(3) | 2024 | $0 | $0 | 2025-10 |
| International Association of Lions Clubs | 501(c)(4) | 1969 | $0 | $0 | 2026-06 | |
| International Association of Lions Clubs | 501(c)(4) | 1940 | $0 | $0 | 2026-06 | |
| International Association of Lions Clubs | 501(c)(4) | 1969 | $0 | $0 | 2025-06 | |
| Iowa District Church of the Nazarene | 501(c)(3) | 1963 | ||||
| Iowa Elite Dual Teams Inc | Recreation and sports | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Iowa Rainbow Foundation Inc | 501(c)(3) | 1985 | $0 | $0 | 2026-04 | |
| Iowa State Police Association Local 13 | Crime and legal-related | 501(c)(3) | 2000 | $0 | $0 | 2024-12 |
| Iowa Yearly Meeting of Friends | 501(c)(3) | 1975 | ||||
| Iowa Yearly Meeting of Friends | 501(c)(3) | 1975 | ||||
| Jubilee Family Church of Oskaloosa Iowa | Religion-related | 501(c)(3) | 1996 | |||
| Kiwanis Club of Mahaska County | 501(c)(4) | 1940 | ||||
| Knights of Columbus | 501(c)(8) | 1940 | $0 | $0 | 2025-12 | |
| Knights of Columbus | Mutual and membership benefit | 501(c)(8) | 1940 | $0 | $0 | 2025-12 |
| Launching Arrows | Education | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Lifehouse Community Church | Religion-related | 501(c)(3) | 1970 | |||
| Mahaska County Humane Society | Animal-related | 501(c)(3) | 2004 | $0 | $0 | 2025-12 |
| Moyer Elite Inc | Recreation and sports | 501(c)(3) | 2020 | $0 | $0 | 2026-06 |
| My Fathers House | Housing and shelter | 501(c)(3) | 1992 | $0 | $0 | 2025-06 |
| New Hope Free Methodist Church | 501(c)(3) | 1958 | ||||
| North Mahaska After Prom | Youth development | 501(c)(3) | 2025 | $0 | $0 | 2026-07 |
| Note the Difference | Arts, culture and humanities | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Olive Tree Family Resources Inc | Human services | 501(c)(3) | 2020 | $0 | $0 | 2025-06 |
| Optimist International | 501(c)(4) | 1958 | $0 | $0 | 2025-09 | |
| Oskaloosa Basketball Club | Recreation and sports | 501(c)(3) | 2023 | $0 | $0 | 2026-03 |
| Oskaloosa Childrens Museum Inc | Arts, culture and humanities | 501(c)(3) | 2025 | $0 | $0 | 2026-01 |
| Oskaloosa Community Theater Inc | 501(c)(3) | 1985 | $0 | $0 | 2025-09 | |
| Oskaloosa Education Foundation Incorporated | 501(c)(3) | 1994 | $0 | $0 | 2025-12 | |
| Oskaloosa Elementary Pto | Education | 501(c)(3) | 2024 | $0 | $0 | 2025-06 |
| Oskaloosa Food Pantry Incorporated | Food, agriculture and nutrition | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Oskaloosa Gateway Church of the Nazarene | 501(c)(3) | 1963 | ||||
| Oskaloosa Hope | 501(c)(3) | 1961 | ||||
| Oskaloosa Indoor Sports Complex LTD | Recreation and sports | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| Oskaloosa Trees Forever | Environment | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Oskaloosa Youth Sports Foundation | Recreation and sports | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Park Church of Christ | 501(c)(3) | 1984 | ||||
| Pflag Oskaloosa | 501(c)(3) | 1994 | $0 | $0 | 2025-09 | |
| Pro Hick Racing Inc | Recreation and sports | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Reading League of Iowa | Education | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Refired Inc | Youth development | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Ruritan National Corp | 501(c)(4) | 1964 | $0 | $0 | 2025-12 | |
| Saint John Lutheran Church | 501(c)(3) | 1941 | ||||
| Shekinah International | Human services | 501(c)(3) | 2022 | $0 | $0 | 2025-04 |
| South East Iowa Anglers Club | Food, agriculture and nutrition | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Southern Iowa Fair Foundation | Food, agriculture and nutrition | 501(c)(3) | 2022 | $0 | $0 | 2025-09 |
| Southern Iowa Stars | Recreation and sports | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Statesman Wrestling Booster Club | Recreation and sports | 501(c)(3) | 2022 | $0 | $0 | 2025-06 |
| Team Solid Inc | Recreation and sports | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| The Class of 5-25-77 Scholarship Inc | Education | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| The Climb | Human services | 501(c)(3) | 2024 | |||
| The Mahaska Area Food Cupboard | Food, agriculture and nutrition | 501(c)(3) | 2026 | |||
| Trojan Two Man | Recreation and sports | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Trout Unlimited | 501(c)(3) | 1972 | $0 | $0 | 2026-03 | |
| Tyler Deheer Foundation | Human services | 501(c)(3) | 2026 | |||
| Uplifting Puppet Co | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
By cause in Oskaloosa, IA
- Education 13
- Recreation and sports 12
- Human services 9
- Arts, culture and humanities 6
- Animal-related 4
- Food, agriculture and nutrition 4
- Religion-related 3
- Philanthropy, voluntarism and grantmaking foundations 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.