Data / Nonprofits / California / Mariposa
Nonprofits in Mariposa, CA: 111 registered with the IRS
111 nonprofits are registered with the IRS in Mariposa, CA, 91 of them 501(c)(3) charities; the 34 that report revenue took in $29 million. The largest by revenue: Alliance for Community Transformations ($7.4 million), Sierra Foothill Conservancy Trust ($5.4 million), Yosemite-Mariposa County Tourism Bureau Inc ($3.1 million). Most common causes: education (14), arts, culture and humanities (8), human services (8).
SpecStream is the live web data engine for teams and agents. It reads the IRS register of exempt organizations as the IRS updates it, and this page is that reading. Ask for the nonprofits you need by place, cause and size, with their latest Form 990 figures and websites, and they arrive in your sheet, CRM, Slack or agent.
Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Alliance for Community Transformations | Mental health and crisis intervention | 501(c)(3) | 1996 | $7.4 million | $3.1 million | 2024-06 |
| Sierra Foothill Conservancy Trust | Environment | 501(c)(3) | 1996 | $5.4 million | $39.2 million | 2025-06 |
| Yosemite-Mariposa County Tourism Bureau Inc | Community improvement and capacity building | 501(c)(6) | 2007 | $3.1 million | $912,767 | 2025-06 |
| Native Solutions Family Guidance Center | Human services | 501(c)(3) | 2021 | $1.7 million | $974,436 | 2024-12 |
| Happy Goat Inc | Environment | 501(c)(3) | 2021 | $1.7 million | $4.2 million | 2025-12 |
| Sierra Quest Human Services Foundation Inc | Human services | 501(c)(3) | 2010 | $1.6 million | $627,683 | 2025-12 |
| American Indian Council of Mariposa County | 501(c)(3) | 1993 | $1.6 million | $1.1 million | 2025-11 | |
| Mariposa County Fire Safe Council Inc | Public safety, disaster preparedness and relief | 501(c)(3) | 2002 | $1.5 million | $278,086 | 2025-12 |
| Mariposa County Arts Council Inc | Arts, culture and humanities | 501(c)(3) | 1984 | $975,540 | $556,926 | 2025-06 |
| Mariposa Safe Families Incorporated | Crime and legal-related | 501(c)(3) | 2004 | $837,798 | $146,316 | 2025-09 |
| Yosemite Climbing Association | Arts, culture and humanities | 501(c)(3) | 2003 | $504,532 | $222,152 | 2025-12 |
| Act Holding Inc | Mental health and crisis intervention | 501(c)(3) | 2022 | $457,376 | $3.3 million | 2024-06 |
| Mariposa County Chamber of Commerce | 501(c)(6) | 1988 | $421,790 | $189,818 | 2025-06 | |
| Mariposa Museum and History Center Inc | 501(c)(3) | 1969 | $273,094 | $316,681 | 2024-12 | |
| Meherana | 501(c)(3) | 1994 | $238,294 | $1.6 million | 2025-03 | |
| Upper Merced River Watershed Council | Environment | 501(c)(3) | 2008 | $153,959 | $31,159 | 2025-12 |
| Spca of Mariposa County | Animal-related | 501(c)(3) | 1977 | $121,971 | $556,008 | 2025-12 |
| Mariposa Ffa Boosters | Education | 501(c)(3) | 2000 | $111,588 | $156,735 | 2025-12 |
| John C Fremont Hospital Foundation | Health care | 501(c)(3) | 1981 | $98,481 | $218,633 | 2025-06 |
| Barrier of the National Association of Free Will Baptist | Religion-related | 501(c)(3) | 2003 | $81,913 | $845,362 | 2024-12 |
| Mariposa Butterfly Festival Inc | Environment | 501(c)(3) | 2020 | $80,290 | $95,295 | 2025-06 |
| Mariposa County Sheriffs Foundation | Crime and legal-related | 501(c)(3) | 2022 | $64,728 | $73,978 | 2025-12 |
| Mariposa Junior Livestock Auction Committee Inc | Food, agriculture and nutrition | 501(c)(3) | 2012 | $61,831 | $162,716 | 2025-12 |
| Manna House of Mariposa County | 501(c)(3) | 1987 | $61,488 | $183,075 | 2025-09 | |
| Veterans of Foreign Wars Department of California | 501(c)(19) | 1958 | $61,075 | $386,622 | 2025-12 | |
| Mariposa Rotary Fund | Education | 501(c)(3) | 2005 | $60,734 | $104,552 | 2025-06 |
| Mariposa County Schools Foundation | 501(c)(3) | 1994 | $60,181 | $174,317 | 2025-12 | |
| Mariposa Friends of the Fairgrounds Foundation | Recreation and sports | 501(c)(3) | 2012 | $59,751 | $258,191 | 2025-12 |
| Rotary International | 501(c)(4) | 1942 | $57,077 | $66,925 | 2025-06 | |
| Habitat for Humanity Intermational Inc | 501(c)(3) | 1987 | $36,604 | $490,000 | 2025-06 | |
| Free & Accepted Masons of California | 501(c)(10) | 1940 | $29,468 | $589,070 | 2024-12 | |
| Mariposa County Farm Bureau | 501(c)(5) | 1962 | $28,504 | $94,995 | 2025-10 | |
| Mariposa Community Foundation | Education | 501(c)(3) | 2003 | $5,074 | $256,757 | 2025-12 |
| Mariposa Trails | Environment | 501(c)(3) | 2020 | $1,138 | $45,741 | 2025-12 |
| 17 - Spiritual Order Ministries | Human services | 501(c)(3) | 2010 | $0 | $0 | 2025-12 |
| Advent Behavioral Health Center | Mental health and crisis intervention | 501(c)(3) | 2025 | |||
| Alpha Sigma Pi Alumni Association | Education | 501(c)(3) | 2020 | $0 | $0 | 2025-06 |
| American Association of University Women | Education | 501(c)(4) | 2010 | $0 | $0 | 2025-06 |
| American Legion | 501(c)(19) | 1946 | $0 | $0 | 2025-12 | |
| American Legion Auxiliary | 501(c)(19) | 2014 | $0 | $0 | 2026-06 | |
| Bear Valley Patrol Association | Recreation and sports | 501(c)(3) | 2026 | |||
| Bootjack Stompers Square Dance Club | Education | 501(c)(4) | 2001 | $0 | $0 | 2025-12 |
| Bootjack Volunteer Fire Dept | 501(c)(4) | $0 | $0 | 2025-12 | ||
| Brotherhood of the Golden Age | 501(c)(3) | 1985 | ||||
| Casa Oso Foundation Corp | Public safety, disaster preparedness and relief | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Catnip Society Inc | Animal-related | 501(c)(3) | 2007 | $0 | $0 | 2025-12 |
| Central Sierra Community Bible Church | 501(c)(3) | 1973 | ||||
| Chowchilla Mountain Womens Club | 501(c)(3) | 1991 | $0 | $0 | 2025-12 | |
| Circle of Hope Ministry | Religion-related | 501(c)(3) | 2013 | |||
| Collaborative Arts and Culture Foundation | Arts, culture and humanities | 501(c)(3) | 2010 | $0 | $0 | 2026-06 |
| Cordelia Community Services | Human services | 501(c)(3) | 2026 | $0 | $0 | 2026-06 |
| Economic Development Corp of Mariposa County | 501(c)(3) | 1995 | $0 | $0 | 2026-06 | |
| Four Institutions | Human services | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Frank L Swan Inc Veba Trust | 501(c)(9) | 1983 | $0 | $0 | 2025-02 | |
| Golden State Cultural Arts Foundation | Human services | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Hornitos Historical Society Inc | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $0 | 2025-05 |
| Immanuel Ministries Inc | Religion-related | 501(c)(3) | 2004 | $0 | $0 | 2025-12 |
| Independent Order of Odd Fellows | 501(c)(8) | 1962 | $0 | $0 | 2025-04 | |
| International Association of Lions Clubs | 501(c)(4) | 1940 | $0 | $0 | 2026-06 | |
| International Evangelism Outreach | 501(c)(3) | 1964 | ||||
| John C Fremont 1854 | Public and societal benefit | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Kops for Kids | Youth development | 501(c)(3) | 2019 | $0 | $0 | 2023-12 |
| Lead His Lambs Family Ministry Inc | Human services | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Light On the Hill Resource Center Mariposa California | 501(c)(3) | 1980 | ||||
| Little League Baseball Inc | 501(c)(3) | 1967 | $0 | $0 | 2025-09 | |
| Lushmeadows Association | 501(c)(7) | 1977 | $0 | $0 | 2025-06 | |
| MCHS Academic Booster Club Inc | Education | 501(c)(3) | 2011 | $0 | $0 | 2026-06 |
| Made in Mariposa | Arts, culture and humanities | 501(c)(3) | 2026 | |||
| Main Street Mariposa | Community improvement and capacity building | 501(c)(3) | 2018 | $0 | $0 | 2023-12 |
| Makahiki Ministries Inc | 501(c)(3) | 1983 | $0 | $0 | 2025-12 | |
| Mariposa Agri Nature Association | Food, agriculture and nutrition | 501(c)(3) | 2010 | $0 | $0 | 2025-12 |
| Mariposa Area Amateur Radio Organization | Public and societal benefit | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Mariposa Assembly of God | 501(c)(3) | 1964 | ||||
| Mariposa Biomass Project | Environment | 501(c)(3) | 2015 | $0 | $0 | 2025-06 |
| Mariposa Christian Fellowship of Mariposa | 501(c)(3) | 1978 | ||||
| Mariposa Community Chorus Inc | Arts, culture and humanities | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Mariposa Community Radio | Arts, culture and humanities | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Mariposa County Alumni Association | Education | 501(c)(4) | 2011 | $0 | $0 | 2025-12 |
| Mariposa County Deputy Sheriffs Association Public Safety Hardship | Mutual and membership benefit | 501(c)(3) | 2019 | $0 | $0 | 2023-12 |
| Mariposa County Fish & Game Protective Assoc | 501(c)(3) | 1971 | $0 | $0 | 2023-06 | |
| Mariposa County Friends of the Library Inc | Education | 501(c)(3) | 2025 | $0 | $0 | 2026-03 |
| Mariposa County Sheriffs Posse | Crime and legal-related | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Mariposa County Student Loanassociation | Education | 501(c)(3) | 2025 | $173,334 | 2025-08 | |
| Mariposa Dream Builders | Education | 501(c)(3) | 2024 | $0 | $1 | 2024-12 |
| Mariposa Elementary School Parent Club Association | Education | 501(c)(3) | 2006 | $0 | $0 | 2026-06 |
| Mariposa Gem and Mineral Club | 501(c)(4) | 1992 | $0 | $0 | 2025-12 | |
| Mariposa Girls Softball | Recreation and sports | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Mariposa Golden Agers Incorporated | 501(c)(3) | 1983 | $0 | $0 | 2025-12 | |
| Mariposa Grizzlies Quarterback Club | Recreation and sports | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Mariposa Mountain Riders | Animal-related | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Mariposa Revival Center | 501(c)(3) | 1990 | ||||
| Mariposa Set Free | Religion-related | 501(c)(3) | 2015 | |||
| Mariposa Seventh-Day Adventist Church | 501(c)(3) | 1950 | ||||
| Mariposa Sheriffs Management Association | Crime and legal-related | 501(c)(5) | 2018 | $0 | $0 | 2025-12 |
| Mariposa Soccer League Inc | Recreation and sports | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Mariposa Youth Basketball League Inc | Recreation and sports | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Mariposa-Yosemite Experimental Aircraft Association Chapter No 1261 Inc | Education | 501(c)(7) | 2000 | $0 | $0 | 2025-12 |
| Music of Tom Hoffmann | Arts, culture and humanities | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| New Life Calvary Chapel of Mariposa | Religion-related | 501(c)(3) | 1995 | 2023-12 | ||
| Ponderosa Basin Chapel | 501(c)(3) | 1984 | ||||
| Real World Scholars Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2014 | $99,001 | 2025-12 | |
| Rise Flag Football Sierra Mt Foothills Mariposa | Recreation and sports | 501(c)(3) | 2025 | |||
| Soroptimist International of the Americas Inc | Crime and legal-related | 501(c)(3) | 2002 | $0 | $0 | 2025-06 |
| Spiritual Assembly of the Bahais of Mariposa County | 501(c)(3) | 1995 | ||||
| The Great Commission of the Sierras | Human services | 501(c)(3) | 2026 | |||
| Tops Club Inc | Health care | 501(c)(3) | 2008 | $0 | $0 | 2026-03 |
| Woodland Elementary Boosters Inc | Education | 501(c)(3) | 2018 | $0 | $0 | 2025-06 |
| Yolovivi Rooted Wellness Collective | Mental health and crisis intervention | 501(c)(3) | 2026 | |||
| Yosemite Area Audubon Society | Animal-related | 501(c)(3) | 2009 | $0 | $0 | 2026-06 |
| Yosemite Fire Rescue | 501(c)(4) | 1994 | $0 | $0 | 2024-12 | |
| Yosemite Vista Volleyball Club | Youth development | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
By cause in Mariposa, CA
- Education 14
- Arts, culture and humanities 8
- Human services 8
- Recreation and sports 7
- Environment 6
- Religion-related 5
- Crime and legal-related 5
- Animal-related 4
- Mental health and crisis intervention 4
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.