Menlo-Atherton High

Menlo-Atherton High operates as a sprawling high school in Atherton, California, operated by Sequoia Union High. Current enrollment sits at 2,158 students spanning grades 9 through 12. Enrollment runs roughly 158% bigger than the state mean of about 838.

Within Sequoia Union High, which oversees 6 schools and 8,419 students, Menlo-Atherton High is one campus in the system.

On the student-mix side, Menlo-Atherton High logs that 43% of students identify as Hispanic, with the remaining enrollment distributed across several groups. Beyond that, the school reports 35% White, 8% Asian, 5% multiracial, 4% Pacific Islander. That is noticeably more Hispanic than the county at large, where the share is closer to 25%.

In terms of school funding signals, Staff filings list 120 full-time-equivalent teachers, which works out to roughly 17.9:1 students per teacher. The state averages about 18.2:1, putting this campus right in line with peers. Roughly 33% of students at Menlo-Atherton High qualify for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal.

Adjusting for the school's free-and-reduced-lunch share, Menlo-Atherton High sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 59.9%; this one delivers 63.1%.

In the broader community, census data for San Mateo County shows median household earnings sit near $158,855, roughly 54% of adults have completed at least a four-year degree, and roughly 4% of residents live below the federal poverty line. Menlo-Atherton High is one of 176 public schools in San Mateo County (combined enrollment of about 82,403 students).

Nearest neighbor: Laurel Elementary, around 0.4 miles off. Counting just inside five miles, 8 other public schools cluster around Menlo-Atherton High. Ranking that nearby cluster on reported proficiency puts Menlo-Atherton High at 4th of 8; the average score across the group is 46.6%.

Geographically, the school is in a suburban area.

Trend over the last 7 years. Looking back 7 years, enrollment at Menlo-Atherton High has shrank 12%, going from 2,450 students in 2018 to 2,158 in 2025. The student-to-teacher ratio pulled in from 19.4:1 in 2018 to 17.9:1 today.

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