Foothills High

Foothills High, a very small senior high in San Marcos, California, run under San Marcos Unified, teaches 101 students, covering grades 9 through 12. By comparison, California's public schools average about 838 students each, so Foothills High sits 88% below that benchmark.

Across the 19 schools in San Marcos Unified (18,837 students total), Foothills High accounts for its share of the district's footprint.

In terms of who attends, Foothills High reports that the largest single group is Hispanic, at 60% of enrollment. Other groups include 32% White, 4% multiracial. By comparison, San Diego County as a whole is about 35% Hispanic, so the school skews considerably more Hispanic than its surroundings.

Looking at the economic backdrop, On paper, Foothills High has 5 full-time-equivalent teachers, translating to a class-load average of around 20.2:1. The state averages around 18.2:1, so this campus is higher than the state norm typical. Around 57% of the student body qualifies for free or reduced-price meals, often used as a Title I proxy.

In the surrounding community, community-level numbers for San Diego County indicate the typical household earns roughly $106,268 per year, about 43% of the adult population holds a bachelor's degree or above, and roughly 7% of residents live below the federal poverty line. Foothills High is one of 766 public schools in San Diego County (combined enrollment of about 467,437 students).

The closest other public school is Twin Oaks High, roughly 0.0 miles away. Counting just inside five miles, 8 other public schools cluster around Foothills High.

The campus sits in a commuter-belt setting.

Over the past 7-year window. Foothills High's enrollment has increased 87% since 2018, when it stood at 54 (now 101). Class-load math has pulled in: from 36.0:1 in 2018 to 20.2:1 in 2025.

In the discussion threads here, the page collects discussion, questions, and updates around school events, parent volunteer needs, and clubs. Parents, students, alumni, and staff are welcome to weigh in.