California · Nonprofit
Sonoma County Regional Parks Foundation
Sonoma County Regional Parks Foundation (California) receives grants from 53 organizations whose IRS filings report $3,700,105 to it, the largest being GORDON E AND BETTY I MOORE FOUNDATION ($650,100). 28 of them have funded it in more than one year, and 51% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- Revenue FY2025
- $-1250
- Funders on record
- 53
- Grants received
- $3.7M
- Net assets
- $0
What Sonoma County Regional Parks Foundation does
Mission
The Sonoma County Regional Parks Foundation raises funds, fosters partnerships and advocates on behalf of Sonoma County Regional Parks. It solicits donations to help acquire, preserve and enhance 62 parks and trails throughout Sonoma County.
As stated on its FY2025 Form 990-EZ.
Programs
Park Acquisition, Preservation, and Enhancement - The Parks Foundation contributes funds to support programs and activities in Sonoma County Regional Parks. Parks Foundation funding was directed to the following major projects in 2024-25:- A rainwater catchment system consisting of two tanks that can store over 45,000 gallons of water. The tanks were installed at Helen Putnam Regional Park: one near the parking lot restrooms on Chileno Valley Road and another by ranger housing. The stored water will be used to water sheep that graze at the park, managing fuel loads and promoting the growth of native wildflowers. The innovative water catchment system not only conserves groundwater and reduces reliance on the parks well, but also serves as a backup resource for fire suppression when needed.- Phase 1 reconstruction of Foothill Regional Park in Windsor, California, after the Kincade Fire. Reconstruction included a spectacular mosaic, titled Resilience, an 88-foot-long curved tile seat wall created by artist Angelina Duckett. The mosaic depicts the parks ecosystem recovery and native flora following the wildfire. The artwork acts as a gathering area and educational space near the…
$1,272,347 spentof which $1,101,869 as grants100% of program spendingEducation Programs and Community Engagement - The Foundation supports a number of programs at Sonoma County Regional Parks, including the following major projects in 2024-25:- Field trips that help students gain knowledge consistent with California state science standards through hands-on exploration in Sonoma County Regional Parks. More than 10,000 students benefited from these field trips, and more than one-third of these students came from disadvantaged schools. - Environmental education programs for underserved students and teens, such as the Youth Exploring Sonoma series, which invites teens from disadvantaged communities to enjoy outdoor recreation, engage in park stewardship, and benefit from leadership opportunities.- Regional Parks volunteer programs- The Water Safety Patrol, including purchasing hundreds of loaner life vests for use at the Russian River- Vamos a Nadar ("Let's Go Swimming"), a program that provides free swim lessons and water safety instruction for Spanish-speaking children and families- "Camperships" for underserved children to attend summer camps in Regional Parks- "Caminitos," a program that brings Spanish-speaking preschool-age children and their…
The 2 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $1,272,347.
The organization over time
Each line starts at 100 in 2017, so what you read is the shape rather than the size: 150 means half as much again as 2017, 50 means half. The number beside each label in the key is where it ended. The shaded band is where the middle 50% of its peers' revenue would sit, given their growth.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2024 to 2025, from $2.2M to $0 (−100%).
How it's funded, over time
Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.
Government-grant reliance: 2022 1%. Grants only. Government contracts and fees sit inside program revenue.
0% of Sonoma County Regional Parks Foundation’s revenue is contributions — more earned-revenue than three-quarters of its peers (39% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 5 of the last 9 reported years ran a deficit.
reserve
Leadership and staff
The officers, directors, trustees and key employees listed on each return. Joined and no longer listed compare each filing with the year before, matching people by surname and first initial; a year after a gap, or a roster under three people, has no comparison.
Who funds it, year by year
2017 → 2023: the base broadened from 14 funders to 23 funders, grant income rose $425k → $475k.
12 of 53 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 51% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.
From the IRS filings of Sonoma County Regional Parks Foundation’s funders (the co-funder graph). Top 30 of 53 funders by total. Association, not causation. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How concentrated its funding is
Sonoma County Regional Parks Foundation has a broad base — no single funder exceeds 18% of grant income, and it takes 4 funders to reach half.
the vertical line marks half of all grant income — 4 funders to its left
70% of the income these shares are computed over arrives through pass-through sponsors or from payers whose filings do not say what kind of payment it is. Concentration is still measured over all of it, because the money is real; what it does not support is a claim about how many institutions have chosen to fund Sonoma County Regional Parks Foundation.
Largest funder’s share by year: 2017 26% · 2018 39% · 2019 24% · 2020 32% · 2021 48% · 2022 36% · 2023 34% — growing more concentrated.
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How long its funders stay
40% of Sonoma County Regional Parks Foundation's funders are still giving 3 years after their first grant; 53% give in more than one year at all.
Share of funders still giving k years after their first recorded grant, pooled across every acquisition cohort. A funder counts as retained in a year only if it made a grant that year. Measured to FY2023, the last fiscal year that has finished arriving — a funder cannot be counted as lapsed in a year most filers have not reached.
Where its funders are
51% of Sonoma County Regional Parks Foundation's grant income arrives through donor-advised or pass-through sponsors, whose addresses record where the money is held rather than where the donor is. Of the $1.8M that is directly attributable, 90% of it comes from California funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $1.9M arriving through sponsors registered in 8 states is excluded from the map and the split above: a sponsor holds money on a donor’s behalf, so its registered address would place those dollars somewhere no donor need ever have been. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Against its field
Sonoma County Regional Parks Foundation has grown faster than half of the 10,011 recreation & sports nonprofits its size.
this organization peer median middle 50% of peers· 10,011 recreation & sports nonprofits under $100k, FY2025
Organizations like Sonoma County Regional Parks Foundation
Organizations whose mission and program text most resemble this one, by semantic similarity over every organization in the US filings — the closest peers, and often the clearest route to shared or prospective funders.
In California
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Public support
0%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Files a return copy in 1 state
Screen this organization
A dated, signed PDF of the compliance screen for Sonoma County Regional Parks Foundation: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.
Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds Sonoma County Regional Parks Foundation?
- Sonoma County Regional Parks Foundation (California) receives grants from 53 organizations whose IRS filings report $3,700,105 to it, the largest being GORDON E AND BETTY I MOORE FOUNDATION ($650,100). 28 of them have funded it in more than one year, and 51% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- How many funders does Sonoma County Regional Parks Foundation have?
- IRS filings report 53 organizations giving $3,700,105 in grants to Sonoma County Regional Parks Foundation, 28 of which have funded it in more than one year.
- Who is the largest funder of Sonoma County Regional Parks Foundation?
- GORDON E AND BETTY I MOORE FOUNDATION is the largest funder on record, with $650,100 in grants. The full list of funders is on this page.
- How can an organization like Sonoma County Regional Parks Foundation find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in California. The funding by cause and by state pages list the largest funders for a given area and how to approach them.
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2017–2025), and the filings of 53 funders that report grants to it. “On record” means captured in the filings we have parsed — a funder that does not e-file, or whose grant detail is not itemized, will not appear. Filings run roughly 12–24 months behind. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. Data on this page was exported October 22, 2026. What this page cannot tell you · view filing