Chaffey High

1245 North Euclid Ave.
Ontario, CA 91762

www.cjuhsd.net

3,127 Students

High School 9th - 12th

School Overview

Chaffey High School, located in Ontario, California, is a historic cornerstone of the Chaffey Joint Union High School District. Established in 1901, it holds the distinction of being the oldest high school in the district and one of the oldest in the region. The campus is widely recognized for its iconic Spanish Colonial Revival architecture and its landmark "Graber Olive House" history, giving it a unique sense of character and tradition that sets it apart from more modern secondary schools.

As a comprehensive public high school, Chaffey serves a diverse student population with a robust curriculum that balances rigorous academic standards with a wide array of extracurricular opportunities. The school is well-regarded for its strong athletic programs, performing arts departments, and various Career Technical Education (CTE) pathways designed to prepare students for both higher education and the workforce. By fostering a culture of school spirit and community engagement, Chaffey High continues to play a vital role in the educational and social development of the Ontario community.

3,127

Total Students

133.8

Full-Time Teachers

23.4

Student/Teacher Ratio

81.5%

Free/Reduced Lunch

Student Demographics

Student Demographics Data Table

Student Demographics for Chaffey High
Demographic	Student Count
White	88
Hispanic	2,777
Black	99
Asian	80
Two or More	55
American Indian	18
Pacific Islander	8

Hispanic
2,777 (88.9%)
Black
99 (3.2%)
White
88 (2.8%)
Asian
80 (2.6%)
Two or More
55 (1.8%)
American Indian
18 (0.6%)
Pacific Islander
8 (0.3%)

School Location

School Details

Status:	Open
School Level:	High School
School Type:	Regular School
Charter Status:*	Public Non-Charter
Virtual Instruction:	Supplemental Virtual
Shared Time Status:	N/A
District:	Chaffey Joint Union High
Phone:	(909)988-5560
Website:	http://www.cjuhsd.net
Grade Range:	9th - 12th
Total Students:	3,127
Full-Time Teachers (FTE):	133.8
Pupil/Teacher Ratio:	23.4
NSLP Participation:¹	Yes under Community Eligibility Option (CEO)
Qualified Free Lunch:	2,203
Qualified Reduced Lunch:	344

* Charter Schools: A public charter school is a publicly funded school that operates independently under a legislative contract (or "charter") with a state, school district, or designated authorizing entity. Charters grant these schools greater operational flexibility over curriculum, staffing, and budgeting in exchange for strict accountability to achieve performance standards established in their charter agreement.

¹ National School Lunch Program (NSLP): The National School Lunch Program is a federally assisted meal program operating in public and nonprofit private schools. It provides nutritionally balanced, low-cost or free lunches to eligible children each school day based on household income thresholds or community eligibility options (CEO).

Title I Program Overview: Title I, Part A of the Elementary and Secondary Education Act (ESEA) allocates federal financial assistance to local educational agencies and public schools with high percentages of children from low-income families to help ensure that all children meet challenging state academic standards.

Grades Taught

Grade 9 773

Grade 10 820

Grade 11 784

Grade 12 750