New Jersey · Nonprofit
Plainsboro Free Public Library Foundation Inc
Plainsboro Free Public Library Foundation Inc (New Jersey) receives grants from 4 organizations whose IRS filings report $50,937 to it, the largest being The Trustees of Princeton University ($50,000). 2 of them have funded it in more than one year.
- Revenue FY2025
- $12k
- Funders on record
- 4
- Grants received
- $51k
- Net assets
- $649k
What Plainsboro Free Public Library Foundation Inc does
Mission
Raise funds for the construction, improvement, and sustainability of a state-of-the-art free public library in Plainsboro, New Jersey.
As stated on its FY2025 Form 990.
Program
Raise funds for the construction, improvement, and sustainability of a state of the art free public library in the Township of Plainsboro, New Jersey.
$323,346 spent100% of program spending
The program described on its FY2024 Form 990. Program spending in total: $323,346.
The organization over time
Each line starts at 100 in 2020, so what you read is the shape rather than the size: 150 means half as much again as 2020, 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 $882k to $649k (−26%).
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.
91% of Plainsboro Free Public Library Foundation Inc’s revenue is contributions — more donation-reliant than the typical peer (65% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 2 of the last 6 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 2 funders, grant income rose $609 → $25k.
1 of 4 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 1% 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 Plainsboro Free Public Library Foundation Inc’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
Plainsboro Free Public Library Foundation Inc leans on a few funders — its largest provides 98% 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
99% 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 Plainsboro Free Public Library Foundation Inc.
Largest funder’s share by year: 2020 82% · 2021 53% · 2022 100% · 2023 100% — 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.
Where its funders are
99% of Plainsboro Free Public Library Foundation Inc's grant income comes from New Jersey funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $337 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
Plainsboro Free Public Library Foundation Inc is better cushioned than half of the 17,277 education nonprofits its size.
this organization peer median middle 50% of peers· 17,277 education nonprofits under $100k, FY2025
Organizations like Plainsboro Free Public Library Foundation Inc
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 New Jersey
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
98% of spending goes to programs.
Governance
Public support
69%
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 Plainsboro Free Public Library Foundation Inc: 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 Plainsboro Free Public Library Foundation Inc?
- Plainsboro Free Public Library Foundation Inc (New Jersey) receives grants from 4 organizations whose IRS filings report $50,937 to it, the largest being The Trustees of Princeton University ($50,000). 2 of them have funded it in more than one year.
- How many funders does Plainsboro Free Public Library Foundation Inc have?
- IRS filings report 4 organizations giving $50,937 in grants to Plainsboro Free Public Library Foundation Inc, 2 of which have funded it in more than one year.
- Who is the largest funder of Plainsboro Free Public Library Foundation Inc?
- The Trustees of Princeton University is the largest funder on record, with $50,000 in grants. The full list of funders is on this page.
- How can an organization like Plainsboro Free Public Library Foundation Inc find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in New Jersey. 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 2020–2025), and the filings of 4 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