MAMMOTH HIGH SCHOOL BOOSTER CLUB is a Public Charity headquartered in Mammoth Lakes, CA. Financial data from the 2025 filing: $247K revenue, $166K expenses, $281K total assets. 8 publicly reported grants to this organization, totaling roughly $63K, appear in IRS filings.
MHS Boosters is a non-profit, all volunteer, parent-teacher-community organization. Our mission is to: Assist Mammoth High School by fostering cooperation and communication between parents, staff, students and the public, and to promote success in academics, athletics, and the arts.
How Mammoth High School Booster Club divides every $100 it spends, from its own Form 990 filings, averaged across 8 years.
No fundraising costs are reported. That often means fundraising runs through a separate affiliated organization that files its own return.
Source: Form 990 filings with the IRS, latest fiscal year 2025. Shares are from the organization's reported expenses. Data by Imperigo; not affiliated with the IRS.
Showing up to 5 of 8 total records — full history available with membership.
Officer compensation and complete director data available with membership.
| Year | Revenue | Expenses | Assets |
|---|---|---|---|
| 2025 | $247K | $166K | $281K |
| 2024 | $315K | $310K | $200K |
| 2023 | $333K | $288K | $195K |
| 2021 | $135K | $121K | $131K |
| 2020 | $129K | $147K | $117K |
Between 2020 and 2025, reported annual revenue grew from $129K to $247K (+92%), with total assets most recently reported at $281K.
Interactive year-over-year charts and full filing details available with membership.
