Original Research by School Decision on Tamalpais High
Tamalpais High sits on a hillside suburban campus along Miller Avenue in Mill Valley, a walkable residential town at the base of Mount Tamalpais where downtown anchors civic life and most families own or rent in a high-cost housing market. The school draws a student body that is predominantly white, with a smaller share of Hispanic, mixed-race, and Asian students. A small fraction of students qualify for free or reduced-price lunch, reflecting the area's overall affluence.
The school's most recent state testing shows proficiency rates of about seven-tenths in English language arts, about half in mathematics, and just over half in science. These numbers place the school below the midpoint among districts in Marin County on overall proficiency. Data was available for only the 2024-25 school year, so trend information is not present. The school does not report a graduation rate in the available data; this metric would help families understand college and career readiness more fully. A parent may want to ask the school directly about graduation outcomes and college placement.
Tamalpais serves a mid-sized enrollment across four grade levels. The district operates three high schools countywide, and Tamalpais High is one of them. The parent district, Tamalpais Union High, is navigating steep enrollment decline, budget reductions, and staffing changes tied to shrinking student numbers across the county. Families moving into the area should expect that these district-level pressures will continue to reshape offerings and priorities. The district also recently passed a scaled-back facilities bond in November 2024 after voters rejected a larger measure; the approved funds will cover roof repairs, classroom modernization, and safety improvements rather than major campus overhauls.
A significant change for all incoming families: the district has adopted an ethnic studies course called Community and Consciousness to replace World Cultures and Geography as a graduation requirement, beginning with the class of 2028-2029, ahead of California's statewide mandate.
The broader economic and housing context shapes who can afford to live here. Home values are among the highest in the state, and monthly rent is also high relative to median household income, making this a community where housing affordability pressures are acute. Mill Valley itself is a built-out, slow-growth town where most new housing comes through state-mandated overlay zoning and conversion of office space rather than large new subdivisions. The downtown is highly walkable with local shops and restaurants, and the community benefits from parks, trails, the public library in Old Mill Park, and transit connections to San Francisco via Golden Gate Transit. For families, this means a cohesive small-town feel but also significant economic barriers to entry.
See more original research from School Decision →