Beta You're viewing our redesigned school page. Prefer the classic layout?

Chaffey High

Public Grades 9-12
910th
SchoolDigger Rank ?
of 2,162 California High Schools
Better than 58% of California high schools
Summary

Chaffey High is a large, traditional public high school serving about 3,100 students in grades 9-12 within the well-regarded Chaffey Joint Union High district in Ontario, CA.

The school has a clear strength in English Language Arts, where student proficiency exceeds both district and state averages. However, it faces significant challenges in mathematics and science, with proficiency rates in these subjects falling below state and district levels. Another major area of concern is student attendance; the chronic absenteeism rate is notably high, which is closely linked to the school's graduation rate that matches the state average but is below the district's, and a dropout rate that is higher than both state and district averages.

When compared to other high schools in the Chaffey Joint Union High district, such as Alta Loma High and Montclair High, Chaffey High's academic performance and student outcome metrics are generally lower. The school's performance is more comparable to Ontario High. It is important for parents to know that the district also includes specialized options like continuation schools for students needing a different setting and a successful Chaffey District Online High program.

3,127
Students ?
23.3
Student/teacher ratio ?
$18,012
Per pupil spending ?
81.5%
Free/discounted lunch ?
 1245 North Euclid Ave.
       Ontario, CA  91762-1997

(909) 988-5560

District: Chaffey Joint Union High


Feeder schools for Chaffey High:

Elementary:    Arroyo Elementary
    Berlyn Elementary
    Central Language Academy
    Edison Elementary
    More...
Middle:    Vina Danks Middle
Racial breakdown:

Hispanic:
88.8%
African American:
3.2%
White:
2.8%
more
 See top rated California high schools

 Compare Chaffey High to nearby high schools!
At a glance
Ranking trend: Holding steady — 56th percentile in 2015 → 58th in 2025
Strengths
Above the California median (58th percentile)
Worth a look
!Test scores below the California average (34% vs 41% meeting standards)
!Dropout rate above the California average (12% vs 8%)
!High chronic absenteeism (38% vs 19% California)
Students meeting standards (2024-2025) ?
This school34%
District avg45%
California avg41%
910th of 2,162
California public high schools ?
Top 42%▲ up 2 pts since 2015
See the entire ranking list of California High Schools →
SchoolDigger rating ?
8th of 10High Schools in the Chaffey Joint Union High
393rd of 1,543Chaffey Joint Union High among California districts
Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)
Show full rank history (all student groups)

All Students

YearAvg scoreStatewide rankCalifornia percentileRating
202555.9910 of 216257.9%★★★☆☆
202454.3900 of 215958.3%★★★☆☆
202349.21005 of 217053.7%★★★☆☆
202247.1991 of 212353.3%★★★☆☆
202156.0515 of 129060.1%★★★☆☆
201944.91108 of 213348.1%★★☆☆☆
201853.8937 of 201753.5%★★★☆☆
201752.3972 of 202151.9%★★★☆☆
201657.4840 of 203958.8%★★★☆☆
201554.7882 of 199455.8%★★★☆☆
201360.4526 of 242678.3%★★★★☆
201256.7633 of 235473.1%★★★★☆
201161.2482 of 236779.6%★★★★☆
201058.0559 of 228175.5%★★★★☆
200951.0718 of 223867.9%★★★☆☆
200849.6687 of 211767.5%★★★☆☆
200750.2657 of 206368.2%★★★☆☆
200646.0713 of 196863.8%★★★☆☆
200545.3688 of 190163.8%★★★☆☆
200439.9703 of 165357.5%★★★☆☆

African American

YearAvg scoreStatewide rankCalifornia percentileRating
202541.9279 of 52346.7%★★☆☆☆
202449.7209 of 51759.6%★★★☆☆
202362.6164 of 52168.5%★★★☆☆
202268.4121 of 52276.8%★★★★☆
201950.6256 of 59256.8%★★★☆☆
201870.2158 of 58272.9%★★★★☆

Asian

YearAvg scoreStatewide rankCalifornia percentileRating
202519.3485 of 58517.1%★☆☆☆☆
202430.9416 of 57327.4%★☆☆☆☆
202334.6414 of 59129.9%★★☆☆☆
201939.7400 of 58231.3%★★☆☆☆

Disabled

YearAvg scoreStatewide rankCalifornia percentileRating
202243.4504 of 116156.6%★★★☆☆
202134.9341 of 55538.6%★★☆☆☆
201937.5599 of 111746.4%★★☆☆☆
201824.7821 of 105222.0%★☆☆☆☆

English Language Learner

YearAvg scoreStatewide rankCalifornia percentileRating
202441.9541 of 108550.1%★★★☆☆
202349.2364 of 106465.8%★★★☆☆
202252.9287 of 104472.5%★★★★☆
202136.5277 of 46740.7%★★☆☆☆
201932.4677 of 94128.1%★☆☆☆☆
201841.7415 of 93855.8%★★★☆☆

Female

YearAvg scoreStatewide rankCalifornia percentileRating
202550.6896 of 190653.0%★★★☆☆
202452.9829 of 191556.7%★★★☆☆
202343.71022 of 191546.6%★★☆☆☆
202245.2928 of 185850.1%★★★☆☆
202152.7481 of 105454.4%★★★☆☆
201944.1989 of 183346.0%★★☆☆☆
201847.3952 of 176045.9%★★☆☆☆

Hispanic

YearAvg scoreStatewide rankCalifornia percentileRating
202565.0601 of 190068.4%★★★☆☆
202462.7626 of 190267.1%★★★☆☆
202356.3762 of 191760.3%★★★☆☆
202254.9727 of 186160.9%★★★☆☆
201951.2837 of 181453.9%★★★☆☆
201862.6632 of 174263.7%★★★☆☆

Homeless

YearAvg scoreStatewide rankCalifornia percentileRating
202553.2169 of 41058.8%★★★☆☆
202450.2160 of 32851.2%★★★☆☆
202339.7169 of 29943.5%★★☆☆☆
202253.1124 of 29057.2%★★★☆☆

Low Socio Economic Status

YearAvg scoreStatewide rankCalifornia percentileRating
202562.1702 of 201365.1%★★★☆☆
202461.4675 of 202666.7%★★★☆☆
202357.1776 of 203061.8%★★★☆☆
202253.9769 of 194360.4%★★★☆☆
202163.4350 of 112668.9%★★★☆☆
201951.2901 of 193753.5%★★★☆☆
201862.2670 of 186264.0%★★★☆☆

Male

YearAvg scoreStatewide rankCalifornia percentileRating
202553.8848 of 194256.3%★★★☆☆
202450.3881 of 194854.8%★★★☆☆
202349.3881 of 196355.1%★★★☆☆
202244.9940 of 191650.9%★★★☆☆
202151.6493 of 112256.1%★★★☆☆
201939.71088 of 188042.1%★★☆☆☆
201854.9816 of 183455.5%★★★☆☆

Multi-racial

YearAvg scoreStatewide rankCalifornia percentileRating
202524.5444 of 57723.1%★☆☆☆☆
202447.4318 of 57444.6%★★☆☆☆
20225.9488 of 5155.2%☆☆☆☆☆

Special Education

YearAvg scoreStatewide rankCalifornia percentileRating
202539.3674 of 125246.2%★★☆☆☆
202446.6513 of 121657.8%★★★☆☆
202347.7479 of 119760.0%★★★☆☆

White

YearAvg scoreStatewide rankCalifornia percentileRating
202551.4591 of 115548.8%★★☆☆☆
202452.8563 of 117352.0%★★★☆☆
202357.7507 of 119357.5%★★★☆☆
202285.8124 of 120489.7%★★★★☆
201941.2748 of 122238.8%★★☆☆☆
201828.0883 of 117324.7%★☆☆☆☆
How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)
Hispanic (2025)68th percentile+10 vs school
Low Socio Economic Status (2025)65th percentile+7 vs school
Homeless (2025)59th percentile~ school
Disabled (2022)57th percentile+3 vs school
Male (2025)56th percentile~ school
Female (2025)53rd percentile-5 vs school
English Language Learner (2024)50th percentile-8 vs school
White (2025)49th percentile-9 vs school
African American (2025)47th percentile-11 vs school
Special Education (2025)46th percentile-12 vs school
Multi-racial (2025)23rd percentile-35 vs school
Asian (2025)17th percentile-41 vs school
By subject vs California (2024-2025) ?
English Language Arts/Literacy59%+10 vs state
Science22%-11 vs state
Mathematics21%-17 vs state

5.0
1 rating · 1 written review
51
40
30
20
10
Rate Chaffey High
Have first-hand experience? A quick rating - and a sentence or two about what stands out (teachers, academics, safety, communication) - helps other families know what to expect.
Takes about a minute. We email you a link to verify your review - your address is never shown publicly.
Tap a star to rate
What people are saying
by a student
Monday, September 12, 2011

Open Quote chaffey high school is a good school and very easy school!there's no way you can't pass chaffey high school it's so easy and you should be able to pass alll your classes.Chaffey High School hhas so much people who supports you if you need help!there's alot of people who can help you through any thing you need.I love Chaffey because there are people who are here to help you and help you graduate!Chaffey High School is a school where student's like me excell in all my classes.i love the school cause they give you everything you need and ask for!so thanks to chaffey and my favorite teacher here:Mrs.Pruett she helped me get through alot of things and helps me grow as a young lady and especially being in foster care!i love chaffey and can't wait to look forward to this year!! Close Quote





Schools Near Chaffey High









Frequently Asked Questions about Chaffey High

Chaffey High ranks 910th of 2162 California high schools. SchoolDigger rates this school 3 stars out of 5.

Students at Chaffey High are 89% Hispanic, 3% African American, 3% White, 3% Asian, 2% Two or more races.

In the 2024-25 school year, 3,127 students attended Chaffey High.

Chaffey High is fed by the following schools:

Elementary : Arroyo Elementary
Elementary : Berlyn Elementary
Elementary : Central Language Academy
Elementary : Edison Elementary
Elementary : Hawthorne Elementary
Elementary : Los Amigos Elementary
Elementary : Mariposa Elementary
Elementary : Vineyard Elementary
Middle : Vina Danks Middle


Rate Chaffey High!



Sign up for updates!

Be the first to know when there is an update for Chaffey High!




SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the California Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.





Diagnostics

None retrieved from Database in 431 milliseconds.