Status and standing
Is it real, and can you give to it?
Where the money goes
What each dollar paid for.
Statement of Functional Expenses
Financial health
Is it on solid ground?
Summary of the Filing
| FY2020 | $536K |
|---|---|
| FY2021 | $557K |
| FY2022 | $764K |
| FY2023 | $972K |
| FY2024 | $1.2M |
| FY2025 | $1.3M |
| FY2020 | $582 |
|---|---|
| FY2021 | $3K |
| FY2022 | $2K |
| FY2023 | $2K |
| FY2024 | $3K |
| FY2025 | $12K |
Balance Sheet
Statement of Revenue
Financial Metrics
Same NTEE category, revenue band, and state where available. Descriptive — not a grade.
| Metric | This org | Peer median | Percentile |
|---|---|---|---|
| Program ratio | 5% | — | — |
| Overhead ratio | 83% | — | — |
| Fundraising cost ratio | 8% | — | — |
| Revenue growth | 91% | — | — |
| Investment management fee ratio | 0% | — | — |
| Legal fee ratio | 0% | — | — |
| Accounting fee ratio | 2% | — | — |
| Fundraising fee ratio | 0% | — | — |
Straight from the Form 990 — descriptive, not an evaluation. A ratio is hidden when its base is zero or too small to be meaningful; the dollars are always shown.
Leadership and pay
Who runs it, and what are they paid?
Officers, Directors & Key Employees
Are you one of these people? Claim this org to confirm your role
Governance & Policies
- 14Voting board membersPt VI · Ln 1a
- 14Independent board membersPt VI · Ln 1b
- Conflict-of-interest policyPt VI · Ln 12aNo
- Whistleblower policyPt VI · Ln 13No
- Document retention policyPt VI · Ln 14No
- Top official’s pay independently reviewedPt VI · Ln 15aNo
- Family or business ties among leadersPt VI · Ln 2No
Mission and programs
What it does.
Helps maintain and interpret Mount Diablo State Park, a Bay Area ecological treasure.
This section is blank until Mt Diablo Interpretive Association claims this page.
Know this organization? Claim it to add your story
Where the work happens
Interpretation and Outreach
Funding of merchandising and operation of two visitor centers, volunteer assistance programs, school and JR. Ranger programs, interpretive talks and events, hikes, native plant garden, and interpretive website.
Maintenance of Park Facilities
Funding of park maintenance projects and events, including earth day and other park restoration events, trail maintenance and signage, trash removal and purchase of park equipment.
Publications and Videos
Creation, publication and distribution of interpretive publications and videos.
Run this program? Claim this org to tell your story
Funders
Who pays for it.
From grant filings on record. Receipts are incomplete: individual donors are never listed.
Grants
Filing history
Every return on file.
| Year | Revenue | Expenses | Change | Filing |
|---|---|---|---|---|
| FY2025 Latest | $394K | $326K | -14% | 990 PDF |
| FY2024 | $457K | $197K | -16% | 990 PDF |
| FY2023 Viewing | $541K | $333K | +91% | 990 PDF |
| FY2022 | $284K | $77K | +127% | 990 PDF |
| FY2021 | $125K | $104K | +196% | 990 PDF |
| FY2020 | $42K | $50K | 990 PDF |
Want to add your own materials alongside these filings? Claim this org
Schedules filed Part IV
Not shown yet: ratings, outcomes, and peer benchmarks. A Form 990 doesn’t report them.
Similar organizations you could support
Run this organization? Claim this page
Compare
Sources
Names, privacy, and removal requests More
The names, titles, and compensation shown on this page are reproduced from IRS Form 990 filings, which are public records.
Philanthropy.org does not alter the content of those filings. All information appears exactly as reported by the filing organization for the tax year shown.
We publish only information contained in the public IRS filing — and less than the filing contains. Our profile pages do not display street addresses, telephone numbers, personal email addresses, or other personal contact information, even where the filing includes them.
Many people share the same name. A name shown on this page reflects only what one organization reported in one IRS filing for one tax year. It should not be interpreted as identifying any other individual with the same or a similar name.
If you are no longer affiliated with the organization, your name will generally stop appearing in future IRS filings once the organization no longer reports you. Pages for tax years in which you were reported remain published because those filings remain part of the public record.
Philanthropy.org does not alter or remove IRS filing records. Removing a page from this website would not remove the underlying IRS filing, which remains publicly available from the IRS and other publishers of the same information.
If you believe the IRS filing itself is inaccurate, corrections must be made by the filing organization or the IRS directly.
If you ARE the filing organization, claim this org and add context
Made it to the end? Claim this organization