California · Nonprofit
WALNUT CREEK HISTORICAL SOCIETY
WALNUT CREEK HISTORICAL SOCIETY (California) receives grants from 2 organizations whose IRS filings report $605 to it, the largest being The Bank of America Charitable Foundation Inc ($500). 1 of them have funded it in more than one year.
- Revenue FY2024
- $215k
- Funders on record
- 2
- Grants received
- $605
- Net assets
- $1.1M
What Walnut Creek Historical Society does
Mission
The Walnut Creek Historical Society is a proactive organization that works with the local community and government to carry out its mission to preserve and interpret local history of Walnut Creek in Northern California. Building connections and pride, the Society welcomes support and participation of the community. Members of the Walnut Creek Historical Society receive a quarterly newsletter, announcements of special events, and a discount on items sold at the museum.
As stated on its FY2024 Form 990.
Program
The Walnut Creek Historical Society operates the shadelands ranch museum and supports the efforts of the community members to expand their understanding of local history. The museum is on the national register of historic places and belongs to the city of walnut creek. The museum is open to the public for tours and also houses a rich archive of contra costa and walnut creek history in its collections of old newspapers, photographs and government records that is made available to the public for research. The historical society also offers walking tours of downtown heritage sites to the public, runs educational programs for area elementary schools (onsite at the museum as well as through downtown walking tours), holds an annual holiday faire and holiday teas, and rents out the grounds of the museum for private events.
$136,675 spentof which $2,500 as grants$97,998 earned by the program100% of program spending
The program described on its FY2024 Form 990. Program spending in total: $136,675.
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 2018 to 2019, from $698k to $834k (+20%).
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: 2021 7% · 2023 7% · 2024 5%. Grants only. Government contracts and fees sit inside program revenue.
27% of WALNUT CREEK HISTORICAL SOCIETY’s revenue is contributions — more earned-revenue than three-quarters of its peers (64% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 2 of the last 8 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
2020 → 2023: the base held at 1 funder, grant income rose $25 → $30.
1 of 2 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 17% 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 WALNUT CREEK HISTORICAL SOCIETY’s funders (the co-funder graph). 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
WALNUT CREEK HISTORICAL SOCIETY leans on a few funders — its largest provides 83% of grant income and the top three 100%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
Largest funder’s share by year: 2020 100% · 2021 95% · 2022 100% · 2023 100% — broadly stable.
“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.
Where its funders are
WALNUT CREEK HISTORICAL SOCIETY draws 100% of its grant income from funders outside California, across 1 state in all.
Funder states come from each funder’s own filing. $105 arriving through sponsors registered in 1 state 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
WALNUT CREEK HISTORICAL SOCIETY's funding has concentrated — grant income rose while the number of funders held roughly flat.
this organization peer median middle 50% of peers· 17,936 arts & culture nonprofits $100k–$1M, FY2024
Organizations like WALNUT CREEK HISTORICAL SOCIETY
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.
Where the money goes
62% of spending goes to programs.
Governance
Public support
64%
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 WALNUT CREEK HISTORICAL SOCIETY: 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 WALNUT CREEK HISTORICAL SOCIETY?
- WALNUT CREEK HISTORICAL SOCIETY (California) receives grants from 2 organizations whose IRS filings report $605 to it, the largest being The Bank of America Charitable Foundation Inc ($500). 1 of them have funded it in more than one year.
- How many funders does WALNUT CREEK HISTORICAL SOCIETY have?
- IRS filings report 2 organizations giving $605 in grants to WALNUT CREEK HISTORICAL SOCIETY, 1 of which have funded it in more than one year.
- Who is the largest funder of WALNUT CREEK HISTORICAL SOCIETY?
- The Bank of America Charitable Foundation Inc is the largest funder on record, with $500 in grants. The full list of funders is on this page.
- How can an organization like WALNUT CREEK HISTORICAL SOCIETY 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.
Play a game about who funds Walnut Creek Historical Society →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2024 (financials across 2017–2024), and the filings of 2 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 14, 2026. What this page cannot tell you · view filing