Capuchino High

As a moderately sized secondary school in San Bruno, California, Capuchino High enrolls 1,061 students from grades 9 through 12, run under San Mateo Union High. Compared to the state average of about 838 students per school, that is 27% bigger than typical.

Across the 8 schools in San Mateo Union High (8,736 students total), Capuchino High accounts for its share of the district's footprint.

Looking at the student body, Capuchino High lists that the largest single group is Hispanic, at 55% of enrollment; the rest looks like 17% Asian, 16% White, 6% multiracial, 4% Pacific Islander. By comparison, San Mateo County as a whole is about 25% Hispanic, so the school skews meaningfully more Hispanic than its surroundings.

Looking at school resources, On paper, Capuchino High has 57 full-time-equivalent teachers, translating to a class-load average of around 18.6:1. That tracks the state average closely. Around 34% of the student body qualifies for free or reduced-price meals, a commonly cited indicator of low-income enrollment.

Adjusting for the school's free-and-reduced-lunch share, Capuchino High is in the bottom 10% of California public schools. The BeatsExpectations model predicts schools with this FRL share to land around 59.1%; Capuchino High posts 37.4%, -21.8 points below that line.

In the surrounding community, the surrounding county (San Mateo County) records that the typical household earns roughly $158,855 per year, roughly 54% of adults have completed at least a four-year degree, and the poverty rate sits near 4%. Capuchino High is one of 176 public schools in San Mateo County (combined enrollment of about 82,403 students).

The closest other public school is Green Hills Elementary, roughly 0.3 miles away. Counting just inside five miles, 8 other public schools cluster around Capuchino High. On composite proficiency, Capuchino High comes 6th of 9 in the immediate cluster, behind the nearby-schools average of 51.7%.

Geographically, the school is in a bedroom-community area.

Looking at the recent track record. Over the past 7-year window, the student count ticked down 13%: 1,213 students in 2018 compared to 1,061 in 2025. Over the same period, the Hispanic share increased from 50% to 55%. Class-load math has pulled in: from 20.1:1 in 2018 to 18.6:1 in 2025.

On this page, members of the Capuchino High community share and discuss open house dates, ride-share offers, and field-trip permission slips. Contributors range from current parents to recent graduates and teachers.