Tamalpais High School Boosters Club

What it says it does

“To encourage, promote and assist athletic activities in the Tamalpais High School Community. The organization provides team equipment, facilities improvements, training aids, tournament fees, and senior and need based scholarships for students participating in sports activities at Tamalpais High School.”From the organization's Form 990 for the year ending Jul 2025, as written (including spelling); all-capital text shown in normal capitalization.

Tamalpais High School Boosters Club finances

From the annual returns the group files with the IRS (Form 990, or the shorter Form 990-EZ for smaller groups), 4 filed years. Net assets are what it owns minus what it owes; management and general is office, admin and insurance cost. A dash means not reported (the short form does not ask for employees or volunteers). Each figure links to that year's return. A year is left out when no return is in the IRS e-file data; that does not mean the group was inactive.

Where the money goes, year ending Jul 2025

• Programs $227,933 (97%)
• Management and general $3,526 (1%)
• Fundraising $4,452 (2%)

Where the money comes from, year ending Jul 2025

• Gifts and grants $211,970 (98%)
• Program fees $0 (0%)
• Investment income $4,479 (2%)
• Other $0 (0%)

People: 0 employees and 11 volunteers reported for the year ending Jul 2025. Counts only; BackPR does not publish names of officers or staff.

Revenue trend: Growing. Revenue went from $116,643 (year ending Jul 2021) to $216,449 (Jul 2025), about +17% a year.

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.

Source: IRS Form 990 Series Downloads (the returns open on ProPublica Nonprofit Explorer, which republishes the IRS files). Figures are as the organization filed them. California nonprofit.

How it compares

2 of 9 youth development nonprofits in Mill Valley when sorted from largest to smallest revenue. This shows size only, not quality. Groups with no reported revenue are listed last.

Size: revenue of $216,449 is higher than roughly 50 to 60% of the 1,664 youth development nonprofits in California that report revenue to the IRS (the city count above also includes groups with none). The median is $169,823.

Our analysis of the IRS Business Master File (posted October 13, 2026), using each group's latest reported revenue. Groups are sorted by revenue and split into ten equal bands, using all California groups of this type (Youth development, which covers several IRS activity codes). Size only, not a rating.

Around Mill Valley and its county

Marin County, California: the Census Bureau estimates about 47,838 children under 18 (July 1, 2024). This directory lists 184 youth and community nonprofits with a mailing ZIP code in the county, about 3.8 per 1,000 children. The count includes PTAs, arts and day care groups, so it is not a measure of places for kids.

This group's ZIP code is matched to the county that holds most of its area, so counts are approximate. County figures come from the Census Bureau's Vintage 2024 population estimates.

Licensed programs in Mill Valley

14 licensed child care centers, 4 school-age programs are in state licensing records and listed in the BackPR finder. The examples below are not related to this organization.

California background check rules for youth programs · How BackPR works for youth development nonprofits

Free forms for youth development nonprofits

More youth development nonprofits in Mill Valley

All youth and community nonprofits in Mill Valley