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City of Rohnert Park Foundation at a glance

· Public charity

City of Rohnert Park Foundation

The specific purpose of the Corporation is to raise funds in connection with the development of civic projects in the City of Rohnert Park.

$131k
Granted FY2025still arriving
9
Grants FY2025still arriving
1
States reached
$61k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0196% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2020 to 2025.

Arts & Culture$89kHuman Services$38kRecreation & Sports$36kEnvironment$31kEducation$30kFood & Nutrition$10kYouth Development$10kReligion$7kOther$0
02FY2025 · 9 grants

Where the money goes

Grants by size, and the largest recipients.

How this is measured
The 9 grants below total $123,026, the rows itemized in this filing. The $130,630 headline is the total grant expense on the return; the other $7,604 is giving the schedule does not break out (grants under the $5,000 itemization floor, grants to individuals, grants on other schedules). Every figure below describes the itemized rows only.

By grant size · FY2025

  • Under $10k6 grants · $42k
  • $10k–50k2 grants · $20k
  • $50k–250k1 grant · $61k
$7,834
Median grant
1
States reached
$3.6M
Total assets
Largest grants
RecipientAmount
City Of Rohnert Park$61,041
Sonoma Bach$10,000
Credo High Foundation$10,000
Tech High Boosters$9,650
Rohnert Park Chorale$7,834
On Campus Ministries$6,972
Rancho High Boosters$6,725
Rohnert Park-Cotati Rotary Cl$5,770
Food for Thought$5,034
02The need
03

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Its human-services grants (FY21–25, $38k) land where the poverty rate runs at 9%, against an area that typically sits at 8%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 8%Spreckels Performing Arts Center: $11k → 9%Credo High Foundation: $10k → 9%Spreckels Performing Arts Center: $8k → 9%SPRECKELS PERFORMING ARTS CENTER: $8k → 9%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

19%of every dollar goes to organizations it has funded before.
$55k · 3 repeat orgs$229k to everyone else

Grantees it renews have grown median revenue +38% since the first grant, against +23% for those funded once.

3 repeat relationships: 2 still active in FY2025, 1 since wound down; 7 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

3
11

Total granted

$55k
$124k

Median revenue growth · since first grant

+38%
+23%

Still filing today

67%
27%

New vs renewed · share of each year

In FY2025, 14% of grant dollars renewed an existing relationship; $106k went to new ones.

50%100%’20’21’22’23’24’25
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’20’21’22’23’24’25
Arts & CultureHuman ServicesReligionEducationPhilanthropyFood & NutritionOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.

Backed again, and grew

  • PP
    PETALUMA PEOPLE SERVICES CENTER
    3× · 2021–2023 · $28k · revenue +38%
  • TT
    THS Titans Boosters Inc
    2× · 2020–2025 · $15k · revenue -38% · 49% of their budget
  • RP
    ROHNERT PARK COMMUNITY CHORALE
    2× · 2020–2025 · $13k

Funded once

  • CO
    CITY OF ROHNERT PARK
    4× · 2021–2024 · $41k
  • C-
    COTATI -ROHNERT PARK UNIFIED SCHOOL DIST
    one grant, 2020 · $25k
  • D
    DUDEK
    one grant, 2024 · $18k
How this is measured

Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.

04Its field

Closest unfunded matches

The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.

1
Sonoma Botanical Garden
—
2
Sonoma Valley Rotary Service Fund Foundation

To promote and expand the charitable and public benefit projects and efforts carried on by the Rotary Club of Sonoma Valley.

Education
3
Pta California Congress of Parents Teachers & Students Inc

Supports students and staff at Castro Valley high school by enhancing academic and social development. We are the PTA for Castro Valley High School

—
4
Pta California Congress of Parents Teachers & Students Inc

Promote a cooperative effort between parents & educators

—
5
Sonoma Mountain Institute
Environment
6
Sammamish High School Boosters

Sammamish High School Boosters provides funding for athletic, extra-curricular, and academic needs of Sammamish High School for the benefit of students and educators where funding is not otherwise available from the state or local school…

—
7
Solon High School Pta

Parent Teacher Organization supporting high school students

—
8
Band Boosters of Rio Rancho High School

High school band booster

Philanthropy
9
Pta California Congress of Parents Teachers & Students Inc

The support of the San Marcos High School teachers, students and staff.

—
10
Rio Vista High School Booster Club

Youth Athletics, Arts and Agriculture

—
11
Sonoma Valley Health & Recreation Association

Sonoma Valley Health and recreation Association (Sonoma Splash) is dedicated to providing a sustainable state of the art multi-use aquatic and recreation facility accessible to all Sonoma Valley residents for aquatic education and safety,…

Recreation & Sports
12
San Pasqual Athletic Booster Assoc
—
How this is measured
The grantee most central to the portfolio’s shape is Boys & Girls Clubs of Sonoma-Marin; the most unlike its peers is Sonoma Bach. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
04the grantee network

11 grantees tracked through their own filings, 2017–2025.

Each grant beside the grantee’s revenue from every source, year by year.

How this is measured

Counted here: distinct organizations funded across 2017 to 2025, not grant rows in a single year, so this will not match the grant count on the cover. 11 of the 21 grantees resolved in that span have returns of their own we could reconcile.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

1
Load-bearing (≥25% of a budget)
2
Early backer (in before they grew)
11/11
Grantees still filing
5/11
Grew since first funded

Where the money sits, by cause and then by grantee

City Of Rohnert Park: $61,041 · OtherCity Of Rohnert ParkCITY OF ROHNERT PARK: $40,963 · OtherCITY OF ROHNERT PARKCOTATI -ROHNERT PARK UNIFIED SCHOOL DIST: $24,650 · OtherCOTATI -ROHNERT PARK UNIFIED SCHOOL DISTDUDEK: $18,085 · OtherDUDEKTHS Titans Boosters Inc: $14,650 · OtherTHS Titans Boosters IncROHNERT PARK COMMUNITY CHORALE: $12,834 · OtherROHNERT PARK COMMUNITY CHORALE+7 more: $35,000 · Other+7 morePETALUMA PEOPLE SERVICES CENTER: $27,660 · Human ServicesPETALUMA PEOPLE…CREDO HIGH FOUNDATION: $10,000 · Human ServicesCREDO HIGH FOUN…SONOMA BACH: $10,000 · Arts & CultureSTART SOCO: $5,000 · Arts & CultureON CAMPUS MINISTRIES: $6,972 · ReligionRancho Cotate Cougar Boosters Inc: $6,725 · EducationRohnert Park-Cotati Rotary Foundation: $5,770 · PhilanthropyFOOD FOR THOUGHT: $5,034 · Food & Nutrition
Other$207,223Human Services$37,660Arts & Culture$15,000Religion$6,972Education$6,725Philanthropy$5,770Food & Nutrition$5,034

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$100k$1.0M$10Mgrantee revenue →↑ funder's share of their budgetPETALUMA PEOPLE SERVICES CENTER: $27,660 over 3y, 0.2% of budgetTHS Titans Boosters Inc: $14,650 over 2y, 49% of budgetSONOMA BACH: $10,000 over 1y, 4.0% of budgetCREDO HIGH FOUNDATION: $10,000 over 1y, 2.2% of budgetRancho Cotate Cougar Boosters Inc: $6,725 over 1y, 9.8% of budgetRohnert Park-Cotati Rotary Foundation: $5,770 over 1y, 11% of budgetBOYS & GIRLS CLUBS OF SONOMA-MARIN: $5,000 over 1y, 0.1% of budgetSTART SOCO: $5,000 over 1y, 3.2% of budgetCenter for Volunteer & Nonprofit Leadership: $5,000 over 1y, 0.1% of budget
Grantee by grantee: a decade per organization, before and after funding

A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

Sonoma County Vintner…Sonoma County Communi…McNabb FoundationWeinreb Pilecki Segal…The Heck FoundationMarin Community Found…Vanguard Charitable E…American Online Givin…Fidelity Investments …Donor Advised Charita…Amazonsmile Foundation
Sonoma County Vintners FoundationCA15.7× affinity5 shared granteesties to 10 of 10Hover any node to trace its alignments.Compare side by side →

Open a dossier: Sonoma County Vintners Foundation · Sonoma County Community Foundation · McNabb Foundation · Weinreb Pilecki Segal Foundation · The Heck Foundation · Marin Community Foundation · Vanguard Charitable Endowment Program · American Online Giving Foundation Inc · Fidelity Investments Charitable Gift Fund · Donor Advised Charitable Giving Inc · Amazonsmile Foundation

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

How much its grantees rely on government

Each dot is one organization City of Rohnert Park Foundation funds: left to right is the share of its income from government, bottom to top the share from City of Rohnert Park Foundation. Bigger dots raise more.

2025
’20’21’22’23’24’25
no gov · 00%3%13%28%50%funder's share of their income ↑0%5%10%15%20%share of the org’s income from government →
    no gov moneyreceives it· size = income
    0get no government money at all
    3report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–20%
    typical government reliance, FY20–25
    How this is measured
    Government income is each org’s traced federal awards (USASpending grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that a grant caused the public funding. Coverage is precision-first, a floor rather than a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12 to 24 months.
    05Through Plinth

    Warm introductions · Powered by PlinthPlus

    How do I get to City of Rohnert Park Foundation?

    Find your warmest path to City of Rohnert Park Foundation through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.

    Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.

    On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 21 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

    How this is measured
    Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

    Generated from the IRS Form 990 e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

    Source object · view filing

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    More from the funding graph

    The unnamed billions
    grants reported with no recipient in the public record
    The regranting layer
    51% of grant dollars land in the regranting layer
    The DAF merry-go-round
    $9.7B circulates between donor-advised funds
    The endowment market
    who holds foundation money, and what just moved
    The camps
    funders cluster by geography, not ideology
    By state
    where grant money is based, and what stays home