Data / Nonprofits / Idaho / Island Park
Nonprofits in Island Park, ID: 15 registered with the IRS
15 nonprofits are registered with the IRS in Island Park, ID, 11 of them 501(c)(3) charities; the 7 that report revenue took in $1.6 million. The largest by revenue: Island Park Charter School ($541,752), Flat Rock Club ($504,882), Island Park Sustainable Fire Community ($307,424). Most common causes: community improvement and capacity building (3).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Island Park Charter School | Education | 501(c)(3) | 2019 | $541,752 | $1.5 million | 2026-06 |
| Flat Rock Club | 501(c)(7) | 1951 | $504,882 | $728,589 | 2025-10 | |
| Island Park Sustainable Fire Community | Public safety, disaster preparedness and relief | 501(c)(3) | 2015 | $307,424 | $52,649 | 2025-12 |
| Friends of Harriman State Park Incorporated | Recreation and sports | 501(c)(3) | 2010 | $170,105 | $263,850 | 2025-06 |
| Henrys Lake Foundation | Environment | 501(c)(3) | 2022 | $47,343 | $217,660 | 2025-12 |
| Island Park Area Chamber of Commerc E | Community improvement and capacity building | 501(c)(6) | 2025 | $39,173 | $29,276 | 2016-12 |
| Targhee Trail Riders | Environment | 501(c)(3) | 2023 | $499 | $16,787 | 2025-12 |
| Daisys Angels Inc | Human services | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Friends of Island Park Ambulance | Health care | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Island Park Cares Inc | Community improvement and capacity building | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Island Park Ham Radio Club Incorporated | Science and technology | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Island Park Historical Society | Arts, culture and humanities | 501(c)(3) | 1999 | $0 | $0 | 2025-12 |
| Mountain Life Charitable Foundation Inc | Community improvement and capacity building | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Rancho McRea Water and Sewer Inc | 501(c)(12) | 1984 | $0 | $0 | 2025-12 | |
| Sawtell Estates Association Inc | Housing and shelter | 501(c)(4) | 2014 | $0 | $0 | 2026-05 |
By cause in Island Park, ID
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.