Hillsdale High

As a well-populated senior high in San Mateo, California, Hillsdale High enrolls 1,585 students from grades 9 through 12, operated by San Mateo Union High. That puts it 89% above the typical public school in California, which averages around 838 students.

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

On the student-mix side, Hillsdale High lists that the largest single group is Hispanic at 38%, but no single group is in the majority. The remainder looks like 31% White, 20% Asian, 9% multiracial. By comparison, San Mateo County as a whole is about 25% Hispanic, so the school skews noticeably more Hispanic than its surroundings.

On the income-and-resources front, The school employs 82 full-time-equivalent teachers, for a student-teacher ratio near 19.4:1. Statewide, the average ratio sits near 18.2:1, putting Hillsdale High higher than the state norm the norm. An estimated 25% of students are eligible for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator. That share is noticeably below San Mateo County's rate of about 34%.

After controlling for student poverty, Hillsdale High performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 64.5%, the actual is 51.1%, a residual of -13.4 points.

In the broader community, ACS estimates for San Mateo County put median household earnings sit near $158,855, about 54% of the adult population holds a bachelor's degree or above, and census figures put the poverty rate at about 4%. Across San Mateo County's 176 public schools (combined enrollment of about 82,403 students), Hillsdale High is one campus in the mix.

The closest other public school is Abbott Middle, roughly 0.2 miles away. 8 of the 8 nearest public schools sit inside a five-mile radius. Ranking that nearby cluster on reported proficiency puts Hillsdale High at 4th of 9; the average score across the group is 52.9%.

Geographically, the school is in a city-core area.

Five-year trend. Hillsdale High's enrollment has increased 3% since 2018, when it stood at 1,534 (now 1,585). Hispanic enrollment moved from 30% to 38% across the same window.

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