Data / Nonprofits / Colorado / Castle Rock / Community improvement and capacity building
Community improvement and capacity building nonprofits in Castle Rock, CO: 14 registered with the IRS
14 community improvement and capacity building nonprofits are registered with the IRS in Castle Rock, CO, 5 of them 501(c)(3) charities; the 7 that report revenue took in $2.5 million. The largest by revenue: Castle Rock Senior Center Incorporated ($1 million), Castle Rock Economic Development Council Inc ($667,720), Colorado Assessors Association ($292,463).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| Castle Rock Senior Center Incorporated | 501(c)(3) | 1993 | $1 million | $1.1 million | 2024-12 |
| Castle Rock Economic Development Council Inc | 501(c)(6) | 2000 | $667,720 | $315,857 | 2024-12 |
| Colorado Assessors Association | 501(c)(4) | 1999 | $292,463 | $235,278 | 2025-09 |
| Hispanic Restaurant Association | 501(c)(3) | 2022 | $218,539 | $35,896 | 2023-12 |
| Castle Rock Merchants Association | 501(c)(6) | 2017 | $127,307 | $270,501 | 2024-12 |
| Rotary Club of Castle Rock Foundation Inc | 501(c)(3) | 2009 | $66,972 | $59,755 | 2025-06 |
| Association of Image Consultants in Ternational USA Chapter | 501(c)(6) | 2026 | $52,365 | $20,650 | 2025-12 |
| Colorado Association of Pretrial Services | 501(c)(6) | 2015 | $0 | $0 | 2025-12 |
| Colorado Orthodontic Association | 501(c)(6) | 2002 | $0 | $0 | 2025-12 |
| Colorado Water Quality Association | 501(c)(6) | 2016 | $0 | $0 | 2025-12 |
| Complete Nonprofit Outsource Corp | 501(c)(3) | 2025 | $0 | $0 | 2024-12 |
| Denver Colorado Executive Association | 501(c)(6) | 2012 | $0 | $0 | 2024-12 |
| Rocky Mountain Antiquarian Booksellers Association | 501(c)(6) | 2021 | $0 | $0 | 2024-12 |
| West Plum Creek Alliance Inc | 501(c)(3) | 2017 | $0 | $0 | 2024-12 |
Other causes in Castle Rock, CO
- Religion-related 69
- Education 42
- Human services 40
- Recreation and sports 34
- Philanthropy, voluntarism and grantmaking foundations 30
- Arts, culture and humanities 22
- Public and societal benefit 18
- Mental health and crisis intervention 14
- Youth development 11
- Diseases, disorders and medical disciplines 10
- Health care 10
- Animal-related 9
- Civil rights, social action and advocacy 8
- Public safety, disaster preparedness and relief 8
- International, foreign affairs and national security 7
- Food, agriculture and nutrition 6
- Environment 6
- Medical research 3
Every nonprofit in Castle Rock, CO · Community improvement and capacity building 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.