Chaffey High

Chaffey High operates as an expansive 9-12 campus in Ontario, California, one of the schools within Chaffey Joint Union High. Current enrollment sits at 3,127 students spanning grades 9 through 12. Compared to the state average of about 838 students per school, that is 273% bigger than typical.

Within Chaffey Joint Union High, which oversees 11 schools and 22,040 students, Chaffey High is one campus in the system.

Looking at the student body, Chaffey High records that nearly all students (89%) are Hispanic. The remainder looks like 3% Black, 3% White, 3% Asian. By comparison, San Bernardino County as a whole is about 55% Hispanic, so the school skews noticeably more Hispanic than its surroundings.

In terms of school funding signals, On paper, Chaffey High has 134 full-time-equivalent teachers, translating to a class-load average of around 23.4:1. The state averages around 18.2:1, so this campus is higher than the state norm typical. Roughly 81% of students at Chaffey High qualify for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal.

With demographic context factored in, Chaffey High sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 31.0%; this one delivers 36.7%.

In the broader community, the surrounding county (San Bernardino County) logs that the typical household earns roughly $85,478 per year, 23% of adults hold a bachelor's degree or higher, and census figures put the poverty rate at about 11%. Across San Bernardino County's 583 public schools (combined enrollment of about 393,648 students), Chaffey High is one campus in the mix.

Nearest neighbor: Vina Danks Middle, around 0.3 miles off. Counting just inside five miles, 8 other public schools cluster around Chaffey High. On composite proficiency, Chaffey High comes 4th of 9 in the immediate cluster, behind the nearby-schools average of 36.9%.

Geographically, the school is in a downtown area.

Looking at the recent track record. Looking back 7 years, enrollment at Chaffey High has shrank 5%, going from 3,297 students in 2018 to 3,127 in 2025.

On allk12, posts here usually surface around fundraisers, lost-and-found posts, and report-card season. Posting is open to anyone connected to the school.