South El Monte High

South El Monte High, a middle-of-the-pack four-year high school in South El Monte, California, one of the schools within El Monte Union High, enrolls 1,125 students, covering grades 9 through 12. Enrollment runs roughly 34% above the state mean of about 838.

South El Monte High is one of 7 schools operated by El Monte Union High, a district that teaches 7,278 students overall.

On demographics, South El Monte High logs that the student body is overwhelmingly Hispanic (94%). The remainder reads as 5% Asian. That is noticeably more Hispanic than the county at large, where the share is closer to 48%.

In terms of school funding signals, South El Monte High reports 52 full-time-equivalent teachers, putting the student-to-teacher ratio at about 21.6:1. The state averages around 18.2:1, so this campus is higher than the state norm typical. About 92% of enrolled students meet the income threshold for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal. Set against Los Angeles County (around 70%), the school's rate is meaningfully above typical.

On a demographically-adjusted basis, South El Monte High tracks the demographic baseline. The model predicts 24.5% given the school's FRL share; actual proficiency is 35.8%.

In the surrounding community, census data for Los Angeles County shows median household income runs about $90,112, 36% of adults hold a bachelor's degree or higher, and the poverty rate sits near 10%. In all, Los Angeles County runs 2244 public schools (combined enrollment of about 1,265,907 students), of which South El Monte High is one.

The closest other public school is New Temple, roughly 0.4 miles away. Within five miles, there are 8 other public schools. Among the 9 schools in that immediate cluster with test data (this one included), South El Monte High ranks 5th on composite proficiency, below the local average of 37.5%.

The school occupies a residential site.

Trend over the last 7 years. Looking back 7 years, enrollment at South El Monte High has declined 13%, going from 1,300 students in 2018 to 1,125 in 2025.

In the discussion threads here, posts here usually surface around open house dates, ride-share offers, and field-trip permission slips. Contributors range from current parents to recent graduates and teachers.