Data / Nonprofits / Illinois / Wonder Lake
Nonprofits in Wonder Lake, IL: 23 registered with the IRS
23 nonprofits are registered with the IRS in Wonder Lake, IL, 15 of them 501(c)(3) charities; the 11 that report revenue took in $1.8 million. The largest by revenue: Outpatient Endovascular and Interventional Society ($1.2 million), Wonder Lake Water Ski Show Team ($144,579), Highland Shores Property Owners Association ($101,575). Most common causes: religion-related (3).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Outpatient Endovascular and Interventional Society | Diseases, disorders and medical disciplines | 501(c)(6) | 2014 | $1.2 million | $1.8 million | 2024-12 |
| Wonder Lake Water Ski Show Team | Arts, culture and humanities | 501(c)(3) | 1999 | $144,579 | $628,034 | 2025-09 |
| Highland Shores Property Owners Association | 501(c)(4) | 1977 | $101,575 | $185,648 | 2025-12 | |
| Midwest Christian Outreach Inc | Religion-related | 501(c)(3) | 2022 | $93,799 | $99,576 | 2026-03 |
| Illinois Quarter Horse Association Inc | 501(c)(5) | 1954 | $93,472 | $288,065 | 2024-12 | |
| Annmarie S Foursome Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $65,716 | $30,763 | 2025-12 |
| Wonder Woods Association Inc | 501(c)(4) | 1954 | $60,236 | $166,485 | 2025-12 | |
| Your Childrens Bookshelf | Education | 501(c)(3) | 2019 | $56,881 | $1 | 2023-12 |
| Marys Helpers Inc | Religion-related | 501(c)(3) | 2025 | $5,220 | $7,117 | 2025-12 |
| Nippersink Watershed Association | Environment | 501(c)(3) | 2011 | $1,767 | $333,969 | 2025-06 |
| Marys Helpers Inc | Religion-related | 501(c)(3) | 2006 | $1,673 | $39 | 2023-12 |
| Afscme Council 31 Local 1748 | 501(c)(5) | 1957 | $0 | $0 | 2024-12 | |
| Christ the King Church | 501(c)(3) | 1946 | 2014-06 | |||
| Deep Spring Woods Country Club | 501(c)(4) | 1946 | ||||
| Eaa Chapter 932 Inc | Education | 501(c)(3) | 2005 | $0 | $0 | 2025-12 |
| Friends of Volo Bog | 501(c)(3) | 1984 | $0 | $0 | 2025-06 | |
| Heartland Pyrotechnic Arts Association Inc | Arts, culture and humanities | 501(c)(7) | 2014 | $0 | $0 | 2025-12 |
| Illinois Congressional Debate Association | Civil rights, social action and advocacy | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Knights of Columbus | Mutual and membership benefit | 501(c)(8) | 1940 | $0 | $0 | 2025-12 |
| Nativity Lutheran Church | 501(c)(3) | 1987 | ||||
| Pentecostal Church of God | 501(c)(3) | 1959 | ||||
| Toastmasters International | 501(c)(3) | 1945 | $0 | $0 | 2024-12 | |
| Turbo Kees Foundation | Animal-related | 501(c)(3) | 2003 | $0 | $0 | 2025-12 |
By cause in Wonder Lake, IL
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.