Glendora High

As a large four-year high school in Glendora, California, Glendora High caters to 2,069 students from grades 9 through 12, part of Glendora Unified. Enrollment runs roughly 147% bigger than the state mean of about 838.

Glendora High is one of 9 schools operated by Glendora Unified, a district that teaches 6,362 students overall.

Looking at the student body, Glendora High logs that the largest single group is Hispanic at 48%, but no single group is in the majority; the rest is composed of 30% White, 13% Asian, 6% multiracial. That composition is broadly in line with Los Angeles County as a whole.

Looking at school resources, On paper, Glendora High has 86 full-time-equivalent teachers, translating to a class-load average of around 24.1:1. That figure is higher than the state norm's 18.2:1 average. Roughly 21% of students at Glendora High qualify for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator. Set against Los Angeles County (around 70%), the school's rate is meaningfully below typical.

On a residual basis (actual vs predicted given the student mix), Glendora High performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 66.9%, the actual is 57.7%, a residual of -9.2 points.

Across the wider county, Los Angeles County reports that median household income runs about $90,112, about 36% of the adult population holds a bachelor's degree or above, and roughly 10% of residents live below the federal poverty line. Glendora High is one of 2244 public schools in Los Angeles County (combined enrollment of about 1,265,907 students).

Sellers Elementary is the nearest neighboring public school, about 0.9 miles from this campus. Within five miles, there are 8 other public schools. Among the 8 schools in that immediate cluster with test data (this one included), Glendora High ranks 7th on composite proficiency, below the local average of 64.3%.

Geographically, the school is in a residential area.

Trend over the last 7 years. Glendora High's enrollment has fell 18% since 2018, when it stood at 2,532 (now 2,069). The White share of enrollment edged down from 43% to 30% over that span. Class-load math has pulled in: from 25.6:1 in 2018 to 24.1:1 in 2025.

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