Diamond Ranch High

Diamond Ranch High operates as a large senior high in Pomona, California, overseen by Pomona Unified. Current enrollment sits at 1,542 students spanning grades 9 through 12. That puts it 84% bigger than the typical public school in California, which averages around 838 students.

Pomona Unified runs 37 schools in total, collectively educating 20,422 students. Diamond Ranch High is one of those campuses.

On demographics, Diamond Ranch High reports that the largest single group is Hispanic, at 78% of enrollment. The remainder looks like 10% Asian, 5% Black, 3% White, 3% multiracial. That is visibly more Hispanic than the county at large, where the share is closer to 48%.

On the resource side, On paper, Diamond Ranch High has 68 full-time-equivalent teachers, translating to a class-load average of around 22.5:1. That figure is higher than the state norm's 18.2:1 average. Around 79% of the student body qualifies for free or reduced-price meals, which schools and policymakers use as a rough income-mix signal. By comparison, Los Angeles County runs at roughly 70%, so the school's eligibility rate is somewhat above the surrounding baseline.

On a residual basis (actual vs predicted given the student mix), Diamond Ranch High performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 32.6%, the actual is 45.8%, a residual of +13.2 points.

Around the school, community-level numbers for Los Angeles County indicate the typical household earns roughly $90,112 per year, about 36% of the adult population holds a bachelor's degree or above, and the poverty rate sits near 10%. Diamond Ranch High is one of 2244 public schools in Los Angeles County (combined enrollment of about 1,265,907 students).

Nearest neighbor: Ranch Hills Elementary, around 1.0 miles off. Counting just inside five miles, 8 other public schools cluster around Diamond Ranch High. Ranking that nearby cluster on reported proficiency puts Diamond Ranch High at 3rd of 9; the average score across the group is 41.0%.

Geographically, the school is in an outer-ring area.

Five-year trend. Diamond Ranch High's enrollment has shrank 5% since 2018, when it stood at 1,631 (now 1,542). Hispanic enrollment moved from 62% to 78% across the same window.

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