Mountain House High

Mountain House High operates as a large senior high in Mountain House, California, overseen by Lammersville Joint Unified. Current enrollment sits at 2,428 students spanning grades 9 through 12. That puts it 190% above the typical public school in California, which averages around 838 students.

Across the 9 schools in Lammersville Joint Unified (7,945 students total), Mountain House High accounts for its share of the district's footprint.

For racial and ethnic makeup, Mountain House High shows that Asian students make up the majority at 62%. Beyond that, the school shows 13% White, 12% Hispanic, 6% multiracial, 5% Black. The wider county runs roughly 19% Asian, putting the school's mix meaningfully more Asian than the area baseline.

On the income-and-resources front, Mountain House High records 96 full-time-equivalent teachers, putting the student-to-teacher ratio at about 25.2:1. The state averages around 18.2:1, so this campus is higher than the state norm typical. Around 11% of the student body qualifies for free or reduced-price meals, which schools and policymakers use as a rough income-mix signal. By comparison, San Joaquin County runs at roughly 66%, so the school's eligibility rate is lower than the surrounding baseline.

Adjusting for the school's free-and-reduced-lunch share, Mountain House High sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 73.1%; this one delivers 67.1%.

In the area at large, the surrounding county (San Joaquin County) logs that median household income runs about $92,179, 23% of adults hold a bachelor's degree or higher, and roughly 10% of residents live below the federal poverty line. Across San Joaquin County's 251 public schools (combined enrollment of about 153,026 students), Mountain House High is one campus in the mix.

Nearest neighbor: Julius Cordes Elementary, around 0.4 miles off. Counting just inside five miles, 8 other public schools cluster around Mountain House High. On composite proficiency, Mountain House High comes 7th of 9 in the immediate cluster, behind the nearby-schools average of 69.4%.

Mountain House High operates from a commuter-belt location.

Five-year trend. Mountain House High's enrollment has expanded 101% since 2018, when it stood at 1,208 (now 2,428). The Asian share of enrollment edged up from 44% to 62% over that span. Class-load math has loosened: from 19.4:1 in 2018 to 25.2:1 in 2025.

Inside the community feed, members of the Mountain House High community share and discuss pickup logistics, teacher feedback, and after-school programs. Members of the school community can share what they know.