California · Nonprofit
TRINITY COUNTY HISTORICAL SOCIETY
TRINITY COUNTY HISTORICAL SOCIETY (California) receives grants from 2 organizations whose IRS filings report $135,967 to it, the largest being HUMBOLDT AREA FOUNDATION ($135,531). 2 of them have funded it in more than one year, and 100% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- Revenue FY2024
- $80k
- Funders on record
- 2
- Grants received
- $136k
- Net assets
- $659k
What Trinity County Historical Society does
Mission
Acquisition, display and preservation of historical data and articacts from and of trinity county and stimulation of interest in dissemination of historical information, which included the publication of the annual "trinity and the production of pioneer videotape recording of the recollections of the county's pioneer families. A mahor new undertaking is the "threads of history project" which is better preserving, cataloging and preparing the extensive collectio of historic textiles for exhibit
As stated on its FY2024 Form 990.
Programs
Acquisition, display and preservation of historical data and artifacts from and of trinity county and stimulation of interest in dissemination of historical information, which included the publication of the annual "trinity and the production of pioneer videotape recording of the recollections of the county's pioneer families. A major new undertaking is the "threads of history project" which is better preserving, cataloging and preparing the extensive collection of historic textiles for exhibit
$59,529 spent100% of program spendingApproximately 13,000 visitors registered at the museum and associated display buildings. Staff assist the visitors and assist to develop the vistors historical interest trhough publications and docent activities
Docents volunteer time and talents for tours of the museum, blacksmith shop, steam powered gold stamp mill and small timber sawmill located on its property. At these sites adults and children learn about california and trinity couty history. Various other program tours to other historic locations are conducted throughout the year
The 3 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $59,529.
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.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2020 to 2021, from $670k to $731k (+9%).
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: 2017 33% · 2018 32% · 2019 44% · 2020 15% · 2021 32% · 2022 25% · 2023 32%. Grants only. Government contracts and fees sit inside program revenue.
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
2017 → 2023: the base held at 1 funder, grant income fell $51k → $82.
2 of 2 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 100% 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 TRINITY COUNTY 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
TRINITY COUNTY HISTORICAL SOCIETY leans on a few funders — its largest provides 100% 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
100% 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 TRINITY COUNTY HISTORICAL SOCIETY.
Largest funder’s share by year: 2017 100% · 2018 100% · 2020 100% · 2021 100% · 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
100% of TRINITY COUNTY HISTORICAL SOCIETY'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. Too little is directly attributable to place on a map.
Funder states come from each funder’s own filing. $136k arriving through sponsors registered in 2 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.
Organizations like TRINITY COUNTY 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
80% of spending goes to programs.
Governance
Public support
80%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Screen this organization
A dated, signed PDF of the compliance screen for TRINITY COUNTY 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 TRINITY COUNTY HISTORICAL SOCIETY?
- TRINITY COUNTY HISTORICAL SOCIETY (California) receives grants from 2 organizations whose IRS filings report $135,967 to it, the largest being HUMBOLDT AREA FOUNDATION ($135,531). 2 of them have funded it in more than one year, and 100% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- How many funders does TRINITY COUNTY HISTORICAL SOCIETY have?
- IRS filings report 2 organizations giving $135,967 in grants to TRINITY COUNTY HISTORICAL SOCIETY, 2 of which have funded it in more than one year.
- Who is the largest funder of TRINITY COUNTY HISTORICAL SOCIETY?
- HUMBOLDT AREA FOUNDATION is the largest funder on record, with $135,531 in grants. The full list of funders is on this page.
- How can an organization like TRINITY COUNTY 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 Trinity County 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