Data / Nonprofits / Iowa / Lake Mills
Nonprofits in Lake Mills, IA: 24 registered with the IRS
24 nonprofits are registered with the IRS in Lake Mills, IA, 18 of them 501(c)(3) charities; the 7 that report revenue took in $1.8 million. The largest by revenue: Lake Mills Family Center ($696,322), Lake Mills Scholarship Foundation ($586,027), Lake Mills Ambulance Service ($203,066). Most common causes: arts, culture and humanities (4), education (3).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Lake Mills Family Center | Human services | 501(c)(3) | 1988 | $696,322 | $706,702 | 2025-08 |
| Lake Mills Scholarship Foundation | Education | 501(c)(3) | 2017 | $586,027 | $811,961 | 2024-12 |
| Lake Mills Ambulance Service | 501(c)(3) | 1974 | $203,066 | $257,477 | 2025-09 | |
| Lake Mills Entertainment Inc | Arts, culture and humanities | 501(c)(3) | 2003 | $135,086 | $1.2 million | 2025-12 |
| Lake Mills Chamber Development Corporation | Community improvement and capacity building | 501(c)(6) | 2000 | $128,374 | $199,391 | 2025-12 |
| Lake Mills Foundation for Community Improvements Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1997 | $55,307 | $233,762 | 2024-12 |
| Rice Lake Chapter of the Izaak Walton League of America Inc | Environment | 501(c)(4) | 2013 | $11,007 | $68,697 | 2025-12 |
| Bethany Institute for Biblical and Ecclesiastical Languages Inc | Arts, culture and humanities | 501(c)(3) | 2018 | $0 | $0 | 2023-12 |
| Grace Evangelical Lutheran Church of Lake Mills | 501(c)(3) | 1972 | ||||
| Iowans for Progress & Prosperity | Public and societal benefit | 501(c)(4) | 2005 | $0 | $593 | 2025-12 |
| Lake Mills Area Historical Society | Arts, culture and humanities | 501(c)(3) | 2000 | $0 | $0 | 2025-12 |
| Lake Mills Area Ministerial Association | Religion-related | 501(c)(3) | 1996 | |||
| Lake Mills Athletic Booster Club Inc | Education | 501(c)(3) | 2017 | $0 | $0 | 2026-06 |
| Lake Mills Education Association | 501(c)(5) | 1975 | $0 | $0 | 2025-08 | |
| Lake Mills Fire Fighters Association | Public safety, disaster preparedness and relief | 501(c)(3) | 2006 | $0 | $0 | 2025-12 |
| Lake Mills Music Boosters | Arts, culture and humanities | 501(c)(3) | 2015 | $6,662 | 2023-06 | |
| New Hope Tabernacle | Religion-related | 501(c)(3) | 2003 | |||
| Salem Lutheran Church | 501(c)(3) | 1988 | 2013-12 | |||
| Silver Lake Lutheran Church | 501(c)(3) | 1988 | ||||
| Sons of Norway | 501(c)(8) | 1972 | $0 | $0 | 2025-12 | |
| The Lake Mills Switchboard | Human services | 501(c)(3) | 2026 | |||
| Wcta Foundation | Education | 501(c)(3) | 2026 | |||
| Winnebago Cooperative Telephone Association | 501(c)(12) | 1952 | 2025-12 | |||
| Winnebago Lutheran Church | 501(c)(3) | 1988 |
By cause in Lake Mills, IA
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.