Mill Valley Middle

Mill Valley Middle is an average-sized intermediate school in Mill Valley, California, one of the schools within Mill Valley Elementary. The school enrolls 721 students in grades 6 through 8.

Mill Valley Middle is one of 6 schools operated by Mill Valley Elementary, a district that teaches 2,309 students overall.

On the student-mix side, Mill Valley Middle records that the largest single group is White, at 72% of enrollment. The remainder looks like 11% multiracial, 10% Hispanic, 6% Asian.

In terms of school funding signals, The school lists 46 full-time-equivalent teachers, for a student-teacher ratio near 15.7:1. That figure is tighter than the state norm's 20.7:1 average. About 6% of enrolled students meet the income threshold for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal. That share is lower than Marin County's rate of about 35%.

On a residual basis (actual vs predicted given the student mix), Mill Valley Middle tracks the demographic baseline. The model predicts 75.8% given the school's FRL share; actual proficiency is 78.8%.

Around the school, Marin County reports that median household income runs about $149,091, 61% of adults hold a bachelor's degree or higher, and the poverty rate sits near 4%. Across Marin County's 75 public schools (combined enrollment of about 29,867 students), Mill Valley Middle is one campus in the mix.

The closest other public school is Tamalpais High, roughly 0.4 miles away. Counting just inside five miles, 8 other public schools cluster around Mill Valley Middle. On composite proficiency, Mill Valley Middle comes 5th of 9 in the immediate cluster, ahead of the nearby-schools average of 73.7%.

The school occupies an outer-ring site.

Five-year trend. Looking back 7 years, enrollment at Mill Valley Middle has ticked down 31%, going from 1,050 students in 2018 to 721 in 2025. White enrollment moved from 77% to 72% across the same window. Class-load math has narrowed: from 19.7:1 in 2018 to 15.7:1 in 2025.

In the discussion threads here, the feed for Mill Valley Middle typically covers sports schedules, lunch menu changes, and school spirit week. Posting is open to anyone connected to the school.