# Mammoth Mountain Community Foundation Inc

Youth centers and clubs nonprofit in Mammoth Lakes, California 93546. EIN 26-4368015. Data as of November 8, 2026.

Page: https://backpr.com/find/nonprofit/264368015-mammoth-mountain-community-foundation-inc

## Mission (the organization's own words)

> Mammoth Mountain Community Foundation believes that opportunity and access to the Eastern Sierra should be open and inclusive to all. By financially supporting youth academics and athletic programs in the Eastern Sierra, we inspire future generations to love our mountains.

Source: Form 990, year ending Sep 2025: https://projects.propublica.org/nonprofits/organizations/264368015/202632239349301588/full

## IRS facts

- Type: Youth centers and clubs (IRS activity code O20)
- Tax status: 501(c)(3), contributions deductible, recognized 2010
- Source: IRS Business Master File, posted October 13, 2026: https://www.irs.gov/charities-non-profits/exempt-organizations-business-master-file-extract-eo-bmf

## Finances (IRS Form 990 e-file data)

| Year ending | Revenue | Expenses | Assets | Net assets | Employees | Volunteers | Source |
|---|---|---|---|---|---|---|---|
| Sep 2025 | $870,759 | $1,157,818 | $2,808,758 | $2,402,692 | 8 | 100 | [Form 990](https://projects.propublica.org/nonprofits/organizations/264368015/202632239349301588/full) |
| Sep 2023 | $2,735,142 | $1,588,790 | $2,796,752 | $2,634,383 | 20 | 25 | [Form 990](https://projects.propublica.org/nonprofits/organizations/264368015/202422279349303667/full) |
| Sep 2022 | $1,236,068 | $1,075,897 | $1,695,077 | $1,488,031 | 18 | 25 | [Form 990](https://projects.propublica.org/nonprofits/organizations/264368015/202332659349301323/full) |
| Sep 2021 | $896,690 | $723,815 | $1,516,361 | $1,325,460 | 21 | 25 | [Form 990](https://projects.propublica.org/nonprofits/organizations/264368015/202241249349303069/full) |

Expense split, year ending Sep 2025: programs $807,214 (70%), management $315,639 (27%), fundraising $34,965 (3%).

Revenue sources, year ending Sep 2025: gifts and grants $890,785, program fees $0, investment income $44,200.

Growth label: **Steady** (about -1% a year, Sep 2021 to Sep 2025). Growth label: we compare total revenue on the oldest and the newest return shown above. Growing means revenue rose by more than 10% a year on average, Shrinking means it fell by more than 10% a year, and Steady means a change between -10% and +10% a year. The rate is the compounded yearly average between the two returns, so it hides ups and downs in between (see the table). We only label groups with returns at least a year apart and at least $5,000 of revenue on the oldest one. This is our own calculation, not an IRS rating or a judgment of quality.

## How it compares

- Revenue rank: 1 of 4 youth development nonprofits in Mammoth Lakes.
- Revenue $870,759 is higher than roughly 70 to 80% of 1,664 youth development nonprofits in California; median $169,823.
- Source: IRS Business Master File, posted October 13, 2026; BackPR analysis.

## Local context

- Mono County, California: about 2,266 children under 18 (U.S. Census Bureau, July 1, 2024): https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/counties/asrh/cc-est2024-agesex-all.csv
- 26 youth and community nonprofits in this directory in the county: 11.5 per 1,000 children.
- Licensed programs in Mammoth Lakes: 7 licensed child care centers: https://backpr.com/find/california/mammoth-lakes
- California rules: https://backpr.com/resources/states/california

## Questions

**What is Mammoth Mountain Community Foundation Inc's EIN?**

Mammoth Mountain Community Foundation Inc's EIN (Employer Identification Number) is 26-4368015. It is the nine-digit number the IRS uses to identify the organization. Source: IRS Exempt Organizations Business Master File posted October 13, 2026.

**Is Mammoth Mountain Community Foundation Inc a nonprofit?**

Yes. The IRS lists Mammoth Mountain Community Foundation Inc in Mammoth Lakes, California as tax-exempt under section 501(c)(3), recognized since 2010. This is from the IRS Business Master File posted October 13, 2026. Status can change, so check its current status on the IRS Tax Exempt Organization Search before you donate.

**Are donations to Mammoth Mountain Community Foundation Inc tax-deductible?**

Yes, the IRS lists gifts to Mammoth Mountain Community Foundation Inc as tax-deductible (IRS Business Master File posted October 13, 2026). How much you can deduct depends on your own taxes, and this is not tax advice. Check its current status on the IRS Tax Exempt Organization Search before you donate.

**What does Mammoth Mountain Community Foundation Inc do?**

In its own words on its Form 990 for the year ending Sep 2025: "Mammoth Mountain Community Foundation believes that opportunity and access to the Eastern Sierra should be open and inclusive to all. By financially supporting youth academics and athletic programs in the Eastern Sierra, we inspire future generations to love our mountains." The IRS classifies it as: Youth centers and clubs.

**How much money does Mammoth Mountain Community Foundation Inc take in?**

For the year ending Sep 2025, Mammoth Mountain Community Foundation Inc reported total revenue of $870,759 and total expenses of $1,157,818 on its Form 990 (IRS Form 990 e-file data).

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Data as of November 8, 2026. Sources: IRS Business Master File, IRS Form 990 series e-file data, U.S. Census Bureau. No officer or staff names are published.