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Mammoth Mountain Community Foundation Inc

EIN 26-4368015 · Mammoth Lakes, CA

Public records show a registered, tax-exempt organization in good standing.

LegitimacyPassesRegistration and standingFinancial healthGood78 out of 100GovernanceGood85 out of 100Impact evidenceDescribes programsHow well its results are evidenced

What it says it does

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.

Income
$1.9 million
Spending
$1.8 million
Spent on programs
62%
Reserves
18.2 months of spending
Largest source of income
donations and private grants, 83%
Employees
20
Volunteers
100
Highest pay
$145,623, executive director

Source: Form 990 for the year ending September 30, 2024, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Financial health

Good: 78 out of 100. Higher than 57% of charities in its peer group (youth development, $1m to $10m).

  • Reserves

    35 of 35

    Spendable reserves would cover 18.2 months of spending.

  • Debt

    20 of 20

    It owes 14% of what it owns.

  • Living within its means

    15 of 15

    Income exceeded spending by 7% of income.

  • Income trend

    0 of 15

    Income fell 31% on the year before.

  • Spending floor

    8 of 15

    62% of spending went to programs and raising each dollar of donations cost 15 cents.

Source: Form 990 for the year ending September 30, 2024, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Governance

Good: 85 out of 100. Higher than 38% of charities in its peer group (youth development, $1m to $10m).

  • Independent board

    25 of 25

    4 of 6 voting board members are independent.

  • Conflict of interest policy

    15 of 15

    Has a written conflict of interest policy.

  • Whistleblower policy

    8 of 8

    Has a written whistleblower policy.

  • Record keeping policy

    7 of 7

    Has a written policy on keeping and destroying records.

  • Board minutes

    5 of 5

    Keeps minutes of board meetings.

  • Board sees the tax return

    10 of 10

    Gave the board a copy of this return before filing it.

  • Pay set independently

    5 of 5

    Sets its chief executive's pay through independent review and comparison.

  • Independent check of accounts

    0 of 15

    Its accounts were not audited or reviewed by an independent accountant.

  • No reported misuse

    10 of 10

    Reports no diversion of assets, excess benefits or loans to insiders.

Source: Form 990 for the year ending September 30, 2024, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Impact evidence

Describes programs. Its tax return describes what it does but we have found no measurable results in it.

Programs described in its return (4)
  1. $467,844 spent. Assist children to achieve their academic potential by providing financial support to the existing institutions of the Mammoth Unified School District including new programs, positions, technology, and facility improvements. The Mammoth School District is located in the Eastern Sierra Nevada Mountains of California. The district serves approximately 1,200 students in four schools. In addition, one independent study center is available for education using classroom and virtual methods. Support for the local schools serves to augment state funding and provide for a margin of excelence in education. High School students apply for college scholarships within this program and 28 scholarships were awarded in the amount of $61,000.
  2. $414,634 spent. Support young athletes in Californias Eastern Sierra Nevada Mountains through athletic education, training and competition by providing facilities, coaching and equipment. Provide a recreational outlet for young people allowing them to develop and improve their capabilities in winter sports. Educate athletes and participants in discipline, sportsmanship, and commitment. Services are available to interested participants in the local region which includes in excess of 1,200 children attending local schools and currently 870 student athletes registered in nine winter sports teams. Support is also available to participants from many traveling youth snow sports teams based in California and across the nation that compete in events at local ski resorts.
  3. $207,183 spent. Provide snow sports team fee assistance based on academic achievement. Supplement travel funds for qualifying races and athletes.
  4. $1,000 spent. Snow Removal Disaster relief fund set up with grant funds recieved to help assist local residences and businesses effected by the large snow year. Mammoth Lakes and Mono County was listed in the disaster relief effected area.

Source: Form 990 for the year ending September 30, 2024, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Legitimacy checks

  1. Is it registered with the IRS? Passed.

    Listed in the IRS master file of tax-exempt organizations as a 501(c)(3) charitable organization.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated September 7, 2026.

  2. Has the IRS revoked its tax-exempt status? Passed.

    Not on the IRS automatic revocation list.

    Source: Automatic revocation of exemption list, Internal Revenue Service, file dated September 30, 2026.

  3. Are donations tax-deductible? Passed.

    On the IRS list of organizations eligible to receive tax-deductible contributions.

    Source: Publication 78 data: organizations eligible for tax-deductible contributions, Internal Revenue Service, file dated September 10, 2026.

  4. Is it keeping up with its IRS filings? Passed.

    Most recent return on file covers the year ending September 2025.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated September 7, 2026.

  5. How long has it been tax-exempt? Passed.

    Recognized by the IRS since June 2010.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated September 7, 2026.

  6. Is it in good standing with state regulators? Passed.

    Not on California's list of charities barred from soliciting. Other states are not yet checked.

    Source: May Not Operate or Solicit for Charitable Purposes list, California Attorney General, Registry of Charities and Fundraisers, file dated October 7, 2026.

  7. Could it be confused with another charity? Worth knowing.

    A much larger organization has a similar name: Maine Community Foundation Inc (Ellsworth, ME), EIN 01-0391479. If that is the one you meant, check the EIN before giving.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated September 7, 2026.

Ratings and checks are our reading of public records, using the published method. They are not a statement about anyone's honesty. If you work for this organization, you can send corrections or results, confirm you want gifts through Veridonate, or ask to be removed from giving.