Tamalpais High

Located at 700 Miller Ave., in Mill Valley, California, Tamalpais High is a high-enrollment secondary school that educates 1,470 students (grades 9 through 12), run under Tamalpais Union High. By comparison, California's public schools average about 838 students each, so Tamalpais High sits 75% larger than that benchmark.

Across the 5 schools in Tamalpais Union High (4,503 students total), Tamalpais High accounts for its share of the district's footprint.

Looking at the student body, Tamalpais High reports that 69% of the student body identifies as White; the rest reads as 12% Hispanic, 10% multiracial, 5% Asian, 3% Black. Compared to Marin County overall, the school's racial mix sits in roughly the same range.

On the income-and-resources front, The school currently runs with 77 full-time-equivalent teachers, for a student-teacher ratio near 19.2:1. That figure is higher than the state norm's 18.2:1 average. About 12% of enrolled students meet the income threshold for free or reduced-price lunch, often used as a Title I proxy. Set against Marin County (around 35%), the school's rate is noticeably below typical.

Adjusting for the school's free-and-reduced-lunch share, Tamalpais High tracks the demographic baseline. The model predicts 72.5% given the school's FRL share; actual proficiency is 66.7%.

Zooming out to the county, the surrounding county (Marin County) records that median household earnings sit near $149,091, roughly 61% of adults have completed at least a four-year degree, and roughly 4% of residents live below the federal poverty line. Tamalpais High is one of 75 public schools in Marin County (combined enrollment of about 29,867 students).

Mill Valley Middle is the nearest neighboring public school, about 0.4 miles from this campus. Counting just inside five miles, 8 other public schools cluster around Tamalpais High. Among the 9 schools in that immediate cluster with test data (this one included), Tamalpais High ranks 8th on composite proficiency, below the local average of 75.2%.

The school occupies a commuter-belt site.

Over the past 7-year window. Over the past 7-year window, the student count edged down 7%: 1,584 students in 2018 compared to 1,470 in 2025.

On the community side, recent activity here tends to focus on science fair prep, picture-day reminders, and bus-route questions. Anyone with firsthand experience at this school can post or comment.