Arlington High

Arlington High is one of the heavily attended four-year high schools in Riverside, California, operated by Riverside Unified, with 1,920 students on its rolls from grades 9 through 12. Enrollment runs roughly 129% larger than the state mean of about 838.

Arlington High is one of 48 schools operated by Riverside Unified, a district that educates 38,002 students overall.

In terms of who attends, Arlington High records that 75% of the student body identifies as Hispanic. The remainder consists of 13% White, 4% Asian, 4% Black, 3% multiracial. That is considerably more Hispanic than the county at large, where the share is closer to 51%.

Looking at school resources, Arlington High shows 85 full-time-equivalent teachers, putting the student-to-teacher ratio at about 22.6:1. The state averages around 18.2:1, so this campus is higher than the state norm typical. Roughly 81% of students at Arlington High qualify for free or reduced-price lunch, often used as a Title I proxy.

Adjusting for the school's free-and-reduced-lunch share, Arlington High performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 31.3%, the actual is 36.5%, a residual of +5.2 points.

Zooming out to the county, Riverside County reports that the typical household earns roughly $93,074 per year, 26% of adults hold a bachelor's degree or higher, and roughly 8% of residents live below the federal poverty line. Across Riverside County's 543 public schools (combined enrollment of about 424,872 students), Arlington High is one campus in the mix.

Nearest neighbor: Hawthorne Elementary, around 0.3 miles off. Counting just inside five miles, 8 other public schools cluster around Arlington High. On composite proficiency, Arlington High comes 2nd of 7 in the immediate cluster, higher than the nearby-schools average of 29.6%.

The school occupies a downtown site.

Trend over the last 7 years. Looking back 7 years, enrollment at Arlington High has held roughly steady, going from 1,918 students in 2018 to 1,920 in 2025.

On the community side, members of the Arlington High community share and discuss science fair prep, picture-day reminders, and bus-route questions. Contributors range from current parents to recent graduates and teachers.