Data / Nonprofits / South Dakota / Buffalo
Nonprofits in Buffalo, SD: 13 registered with the IRS
13 nonprofits are registered with the IRS in Buffalo, SD, 9 of them 501(c)(3) charities; the 1 that report revenue took in $54,991. The largest by revenue: Bullock Community Center ($54,991).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Bullock Community Center | Human services | 501(c)(4) | 2011 | $54,991 | $55,288 | 2025-12 |
| American Legion Auxiliary of Lamnison Post 147 Dept of SD | Public and societal benefit | 501(c)(19) | 2013 | $0 | $0 | 2025-12 |
| Buffalo Museum and One Room Schoolhouse | Arts, culture and humanities | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Camp Crook Roping Club Inc | Recreation and sports | 501(c)(3) | 2018 | $0 | $0 | 2024-12 |
| Gospel Tabernacle | 501(c)(3) | 1964 | ||||
| Grand River Lutheran Church | 501(c)(3) | 1988 | ||||
| Harding County Booster Club | Education | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Harding County Chamber of Commerce | Community improvement and capacity building | 501(c)(6) | 2026 | |||
| Harding County Hospital Association | Medical research | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Harding County Pto | Education | 501(c)(3) | 2016 | $0 | $0 | 2026-06 |
| Harding County Stockgrowers Association | Food, agriculture and nutrition | 501(c)(3) | 2018 | $78,543 | 2023-12 | |
| International Association of Lions Clubs | 501(c)(4) | 1966 | $0 | $0 | 2026-06 | |
| Ladner | 501(c)(3) | 1988 |
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.