SA
High SchoolsGrades 9-12

Chaffey High

Chaffey Joint Union High · San Bernardino County · 1245 North Euclid Avenue, Ontario, CA 91762-1997

(909) 988-5560 · www.cjuhsd.net

5/10
#673
Rank 673 out of 1,227
Top 55%
English Language Arts6/10 · #569 · 54th percentile
Mathematics5/10 · #727 · 41st percentile
Science4/10 · #805 · 38th percentile

English Language Arts

Math Trend

Science Trend

School Overview

Chaffey High is one of the older, more storied campuses in the Inland Empire, situated in Ontario — a city that blends suburban neighborhoods with a strong working-class identity and easy freeway access to both LA and the desert. The school lands solidly in the middle of the pack statewide, with English scores edging slightly ahead of math and science, making it a reasonable fit for families who want a traditional high school experience with a range of extracurriculars and a tight-knit community feel. Families rooted in Ontario who value school pride and local tradition will likely feel at home here.

Student Demographics

685 students tested · 2024-25 school year

Ethnicity

Hispanic
624 (91%)
White
21 (3%)
African American
14 (2%)
Other
26 (4%)

Key Indicators

English Learners140 (20%)
Socioeconomically Disadvantaged628 (92%)
Students with Disabilities99 (14%)

Staff & Teachers(2024-25)

3,127
Enrollment
133.6
Teachers (FTE)
23.4:1
Student-Staff Ratio
6
Administrators (FTE)
31.4
Avg Class Size*(2023-24)

Graduation Rate

83.9%of students graduate within 4 years

Graduation Rate Trend

College Readiness

Advanced Placement (AP) and International Baccalaureate (IB) programs offer college-level coursework and are a key indicator of academic rigor.

14
AP Courses
offered
12.3%
AP Participation
of students
412
AP Enrollment
students

Source: Civil Rights Data Collection (CRDC) 2021-22

Athletics

Tigers · CIF Southern Section

24
varsity sports
10 boys
11 girls
BaseballBasketball (Boys)Basketball (Girls)Cross Country (Boys)Cross Country (Girls)Flag Football (Girls)Football (11 person)Golf (Boys)

Source: CIF Home Campus 2025-26

Community Enrichment Programs

This supplementary score measures the availability of enrichment programs — such as tutoring, music, dance, sports, and arts — within 3 miles of the school. Schools in communities with more diverse and accessible programs score higher.

Nearby Programs7/10 · #680 · 69th percentile

154 programs within 3 miles. Ranked among High Schools in California.

Nearby Libraries

No programs found