Data / Nonprofits / Illinois / Oak Park / Human services
Human services nonprofits in Oak Park, IL: 43 registered with the IRS
43 human services nonprofits are registered with the IRS in Oak Park, IL, 43 of them 501(c)(3) charities; the 10 that report revenue took in $42.8 million. The largest by revenue: Ageoptions Inc ($38.6 million), Abc Toon Town II Educational Center ($1.9 million), Oak Park & River Forest Day Nursery ($1.4 million).
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Every organization, largest by revenue first
Other causes in Oak Park, IL
- Education 51
- Arts, culture and humanities 43
- Religion-related 39
- Philanthropy, voluntarism and grantmaking foundations 29
- Youth development 19
- Health care 16
- Community improvement and capacity building 15
- Recreation and sports 15
- Public and societal benefit 11
- Diseases, disorders and medical disciplines 7
- Housing and shelter 5
- Food, agriculture and nutrition 5
- Mental health and crisis intervention 5
- Civil rights, social action and advocacy 5
- International, foreign affairs and national security 4
- Employment 4
- Crime and legal-related 4
- Environment 4
- Public safety, disaster preparedness and relief 3
Every nonprofit in Oak Park, IL · Human services nonprofits across the state · 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.