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California · Nonprofit

SAN MARCOS HIGH SCHOOL ATHLETIC BOOSTERS CLUB

SAN MARCOS HIGH SCHOOL ATHLETIC BOOSTERS CLUB (California) receives grants from 10 organizations whose IRS filings report $24,401 to it, the largest being SANTA BARBARA FOUNDATION ($10,000). 3 of them have funded it in more than one year, and 71% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.

Revenue FY2025
$95k
Funders on record
10
Grants received
$24k
Net assets
$38k
3/10 repeat funderspeak grant-dependency 10%
01What it does

What San Marcos High School Athletic Boosters Club does

Mission

Provide support to high school athletics department

As stated on its FY2025 Form 990-EZ.

Program

  1. Raise funds to support high school athletics department

    $61,703 spent
    100% of program spending

The program described on its FY2024 Form 990-EZ. Program spending in total: $61,703.

02The organization over time

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.

100 = 20172017 Revenue 100 ($80k) Expenses 100 ($122k) Net assets 100 ($26k)2020 Revenue 91 ($73k) Expenses 51 ($62k) Net assets 178 ($46k)2021 Revenue 20 ($16k) Expenses 14 ($17k) Net assets 172 ($44k)2022 Revenue 73 ($58k) Expenses 44 ($54k) Net assets 179 ($46k)2023 Revenue 77 ($62k) Expenses 51 ($63k) Net assets 175 ($45k)2025 Revenue 120 ($95k) Expenses 63 ($77k) Net assets 150 ($38k)
201720202021202220232025
Revenue (120)Expenses (63)Net assets (150)Peer revenue range

Balance sheet

Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2022 to 2023, from $46k to $86k (+89%).

$26k
$46k
$44k
$46k
$86k
$38k
201720202021202220232025
Total assetsTotal liabilities

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.

2017
2020
2021
2022
2023
2025
ContributionsProgram revenueInvestmentOther

100% of SAN MARCOS HIGH SCHOOL ATHLETIC BOOSTERS CLUB’s revenue is contributions — more reliant on donations than three-quarters of its peers (65% for the typical peer).

This organization
Typical peer · 26,798 orgs

Surplus & reserves

Operating surplus or deficit each year, and months of liquidity in hand. 3 of the last 6 reported years ran a deficit.

−$42k
’17
$11k
’20
−$2k
’21
$4k
’22
−$1k
’23
$18k
’25
03Who funds it

Who funds it, year by year

2018 → 2023: the base broadened from 1 funder to 3 funders, grant income rose $200 → $2k.

3 of 10 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 71% 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 SAN MARCOS HIGH SCHOOL ATHLETIC BOOSTERS CLUB’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

SAN MARCOS HIGH SCHOOL ATHLETIC BOOSTERS CLUB leans on a few funders — its largest provides 41% of grant income and the top three 80%; half comes from just 2 funders.

the vertical line marks half of all grant income — 2 funders to its left

71% 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 SAN MARCOS HIGH SCHOOL ATHLETIC BOOSTERS CLUB.

41%
largest funder
80%
top three
~4
effective funders

Largest funder’s share by year: 2018 100% · 2019 100% · 2020 67% · 2021 64% · 2022 68% · 2023 87% — diversifying over time.

“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.

How long its funders stay

25% of SAN MARCOS HIGH SCHOOL ATHLETIC BOOSTERS CLUB's funders are still giving 3 years after their first grant; 30% give in more than one year at all.

first grant+1y+2y+3y

Share of funders still giving k years after their first recorded grant, pooled across every acquisition cohort. A funder counts as retained in a year only if it made a grant that year. Measured to FY2023, the last fiscal year that has finished arriving — a funder cannot be counted as lapsed in a year most filers have not reached.

Where its funders are

71% of SAN MARCOS HIGH SCHOOL ATHLETIC BOOSTERS CLUB'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. Of the $7k that is directly attributable, 74% of it comes from California funders.

MA
CA
DE
NC

In-state vs out-of-state, by year

’18
’20
’21
’22
’23
California out of state home

Funder states come from each funder’s own filing. $17k arriving through sponsors registered in 3 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.

04Its place in the field

Against its field

SAN MARCOS HIGH SCHOOL ATHLETIC BOOSTERS CLUB runs a healthier operating margin than half of the 17,277 education nonprofits its size.

Operating margin19% · above the median
Revenue growth (annualized)2% · above the median

this organization peer median middle 50% of peers· 17,277 education nonprofits under $100k, FY2025

Organizations like SAN MARCOS HIGH SCHOOL ATHLETIC BOOSTERS CLUB

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

05Profile & governance

Read directly from this organization’s own Form 990, as neutral context.

Public support

100%

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 SAN MARCOS HIGH SCHOOL ATHLETIC BOOSTERS CLUB: 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.

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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 SAN MARCOS HIGH SCHOOL ATHLETIC BOOSTERS CLUB?
SAN MARCOS HIGH SCHOOL ATHLETIC BOOSTERS CLUB (California) receives grants from 10 organizations whose IRS filings report $24,401 to it, the largest being SANTA BARBARA FOUNDATION ($10,000). 3 of them have funded it in more than one year, and 71% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
How many funders does SAN MARCOS HIGH SCHOOL ATHLETIC BOOSTERS CLUB have?
IRS filings report 10 organizations giving $24,401 in grants to SAN MARCOS HIGH SCHOOL ATHLETIC BOOSTERS CLUB, 3 of which have funded it in more than one year.
Who is the largest funder of SAN MARCOS HIGH SCHOOL ATHLETIC BOOSTERS CLUB?
SANTA BARBARA FOUNDATION 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 SAN MARCOS HIGH SCHOOL ATHLETIC BOOSTERS CLUB 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 San Marcos High School Athletic Boosters Club →

These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2017–2025), and the filings of 10 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