Nebraska · Nonprofit
CUSTER COUNTY HISTORICAL SOCIETY
CUSTER COUNTY HISTORICAL SOCIETY (Nebraska) receives grants from 2 organizations whose IRS filings report $10,500 to it, the largest being STERNS CHARITABLE FOUNDATION INC ($10,000). 0 of them have funded it in more than one year.
- Revenue FY2018
- $68k
- Funders on record
- 2
- Grants received
- $11k
- Net assets
- $255k
What Custer County Historical Society does
Mission
Educational & preserve heritage
As stated on its FY2018 Form 990-EZ.
Program
Maintain climate controled museum and research library with technology tools available. Collect past and current literature on history of area
The first program described on its most recent Form 990-EZ.
Who funds it, year by year
Grant support over time, funder by funder — shade shows the grant size each year.
From the IRS filings of CUSTER 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
CUSTER COUNTY HISTORICAL SOCIETY leans on a few funders — its largest provides 95% 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
“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
95% of CUSTER COUNTY HISTORICAL SOCIETY's grant income comes from Nebraska funders.
Funder states come from each funder’s own filing. 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.
Read directly from this organization’s own Form 990, as neutral context.
Public support
92%
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 CUSTER 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 CUSTER COUNTY HISTORICAL SOCIETY?
- CUSTER COUNTY HISTORICAL SOCIETY (Nebraska) receives grants from 2 organizations whose IRS filings report $10,500 to it, the largest being STERNS CHARITABLE FOUNDATION INC ($10,000). 0 of them have funded it in more than one year.
- How many funders does CUSTER COUNTY HISTORICAL SOCIETY have?
- IRS filings report 2 organizations giving $10,500 in grants to CUSTER COUNTY HISTORICAL SOCIETY.
- Who is the largest funder of CUSTER COUNTY HISTORICAL SOCIETY?
- STERNS CHARITABLE FOUNDATION INC is the largest funder on record, with $10,000 in grants. The full list of funders is on this page.
- How can an organization like CUSTER COUNTY HISTORICAL SOCIETY find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Nebraska. 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 Custer County Historical Society →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2018 (financials across 2018–2018), 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