Top Rankings
Chaffey Joint Union High School District ranks among the top 20% of public school district in California for:
Category
Attribute
Reading/Language Arts Proficiency
Highest reading/language arts proficiency (Top 20%)
Community Size
Largest student body (number of students) (Top 1%)
For the 2025 school year, there are 11 public schools serving 22,539 students in Chaffey Joint Union High School District. This district's average testing ranking is 8/10, which is in the top 30% of public schools in California.
51爆料s in Chaffey Joint Union High School District have an average math proficiency score of 31% (versus the California public school average of 33%), and reading proficiency score of 66% (versus the 47% statewide average).
Minority enrollment is 87% of the student body (majority Hispanic), which is more than the California public school average of 80% (majority Hispanic).
Overview
This School District
This State (CA)
# Schools
11 Schools
10,417 Schools
# Students
22,539 Students
5,836,351 Students
# Teachers
938 Teachers
268,443 Teachers
Student : Teacher Ratio
24:1
24:1
District Rank
Chaffey Joint Union High School District, which is ranked #524 of all 1,930 school districts in California (based off of combined math and reading proficiency testing data) for the 2021-2022 school year.
The school district's graduation rate of 92% has increased from 89% over five school years.
Overall District Rank
#524 out of 1941 school districts
(Top 30%)
(Top 30%)
Math Test Scores (% Proficient)
31%
33%
Reading/Language Arts Test Scores (% Proficient)
66%
47%
Science Test Scores (% Proficient)
26%
29%
Graduation Rate
92%
87%
Students by Ethnicity:
Diversity Score
0.55
0.63
# American Indian Students
89 Students
25,834 Students
% American Indian Students
n/a
1%
# Asian Students
2,180 Students
706,211 Students
% Asian Students
10%
12%
# Hispanic Students
14,600 Students
3,270,518 Students
% Hispanic Students
65%
56%
# Black Students
1,714 Students
286,712 Students
% Black Students
8%
5%
# White Students
3,006 Students
1,179,835 Students
% White Students
13%
20%
# Hawaiian Students
94 Students
23,773 Students
% Hawaiian Students
n/a
n/a
# Two or more races Students
829 Students
334,411 Students
% of Two or more races Students
4%
6%
Students by Grade:
# Students in PK Grade:
-
83
# Students in K Grade:
-
523,125
# Students in 1st Grade:
-
397,228
# Students in 2nd Grade:
-
415,060
# Students in 3rd Grade:
-
417,145
# Students in 4th Grade:
-
426,889
# Students in 5th Grade:
-
431,136
# Students in 6th Grade:
-
433,928
# Students in 7th Grade:
-
440,614
# Students in 8th Grade:
-
442,869
# Students in 9th Grade:
5,483
466,920
# Students in 10th Grade:
5,700
477,112
# Students in 11th Grade:
5,342
470,060
# Students in 12th Grade:
6,014
494,182
# Ungraded Students:
-
-
District Revenue and Spending
The revenue/student of $20,960 is higher than the state median of $19,942. The school district revenue/student has grown by 5% over four school years.
The school district's spending/student of $17,424 is less than the state median of $18,366. The school district spending/student has grown by 5% over four school years.
Total Revenue
$472 MM
$116,387 MM
Spending
$393 MM
$107,188 MM
Revenue / Student
$20,960
$19,942
Spending / Student
$17,424
$18,366
Best Chaffey Joint Union High School District 51爆料s (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
Los Osos High School
(Math: 52% | Reading: 81%)
Rank:
Rank:
9/
Top 20%10
6001 Milliken Ave.
Rancho Cucamonga, CA 91737
(909) 477-6900
Rancho Cucamonga, CA 91737
(909) 477-6900
Grades: 9-12
| 2,759 students
Rank: #22.
Etiwanda High School
(Math: 42% | Reading: 75%)
Rank:
Rank:
9/
Top 20%10
13500 Victoria St.
Rancho Cucamonga, CA 91739
(909) 899-2531
Rancho Cucamonga, CA 91739
(909) 899-2531
Grades: 9-12
| 3,540 students
Rank: #33.
Rancho Cucamonga High School
(Math: 38% | Reading: 74%)
Rank:
Rank:
8/
Top 30%10
11801 Lark Dr.
Rancho Cucamonga, CA 91701
(909) 989-1600
Rancho Cucamonga, CA 91701
(909) 989-1600
Grades: 9-12
| 3,343 students
Rank: #44.
Chaffey District Online High School
Alternative School
(Math: <50% | Reading: ≥50%)
Rank:
Rank:
8/
Top 30%10
1802 East 7th St.
Ontario, CA 91764
(909) 985-0966
Ontario, CA 91764
(909) 985-0966
Grades: 9-12
| 112 students
Rank: #55.
Alta Loma High School
(Math: 28% | Reading: 75%)
Rank:
Rank:
8/
Top 30%10
8880 Baseline Rd.
Rancho Cucamonga, CA 91701
(909) 989-5511
Rancho Cucamonga, CA 91701
(909) 989-5511
Grades: 9-12
| 2,400 students
Rank: #66.
Chaffey Community Day
Alternative School
(Math: <50% | Reading: <50% )
Rank:
Rank:
7/
Top 50%10
1802 East Seventh St.
Ontario, CA 91764
(909) 985-0966
Ontario, CA 91764
(909) 985-0966
Grades: 9-12
| 16 students
Rank: #77.
Montclair High School
(Math: 26% | Reading: 62%)
Rank:
Rank:
7/
Top 50%10
4725 Benito St.
Montclair, CA 91763
(909) 621-6781
Montclair, CA 91763
(909) 621-6781
Grades: 9-12
| 2,605 students
Rank: #88.
Colony High School
(Math: 25% | Reading: 62%)
Rank:
Rank:
7/
Top 50%10
3850 East Riverside Dr.
Ontario, CA 91761
(909) 930-2929
Ontario, CA 91761
(909) 930-2929
Grades: 9-12
| 2,085 students
Rank: #99.
Ontario High School
(Math: 22% | Reading: 60%)
Rank:
Rank:
6/
Top 50%10
901 West Francis St.
Ontario, CA 91762
(909) 988-7411
Ontario, CA 91762
(909) 988-7411
Grades: 9-12
| 2,121 students
Rank: #1010.
Chaffey High School
(Math: 15% | Reading: 54%)
Rank:
Rank:
5/
Bottom 50%10
1245 North Euclid Ave.
Ontario, CA 91762
(909) 988-5560
Ontario, CA 91762
(909) 988-5560
Grades: 9-12
| 3,223 students
Rank: #1111.
Valley View High (Continuation School)
Alternative School
(Math: ≤5% | Reading: 6-9%)
Rank:
Rank:
1/
Bottom 50%10
1801 East Sixth St.
Ontario, CA 91764
(909) 985-0966
Ontario, CA 91764
(909) 985-0966
Grades: 9-12
| 335 students
Frequently Asked Questions
How many schools belong to Chaffey Joint Union High School District?
Chaffey Joint Union High School District manages 11 public schools serving 22,539 students.
What is the rank of Chaffey Joint Union High School District?
Chaffey Joint Union High School District is ranked #524 out of 1,930 school districts in California (top 30%) based off of combined math and reading proficiency testing data for the 2021-2022 school year. This district ranks in the top 20% of California school districts for: Highest reading/language arts proficiency (Top 20%) and Largest student body (number of students) (Top 1%)
What is the racial composition of students in Chaffey Joint Union High School District?
65% of Chaffey Joint Union High School District students are Hispanic, 13% of students are White, 10% of students are Asian, 8% of students are Black, and 4% of students are Two or more races.
What is the student/teacher ratio of Chaffey Joint Union High School District?
Chaffey Joint Union High School District has a student/teacher ratio of 24:1, which is higher than the California state average of 22:1.
What is Chaffey Joint Union High School District's spending/student ratio?
The school district's spending/student of $17,424 is less than the state median of $18,366. The school district spending/student has grown by 5% over four school years.
Recent Articles
Segregation in K-12 Education: Colonial Era
Explore the origins of educational segregation during the colonial era and the differential treatment of Native American, African American, and white students. This article delves into the historical context, policies, and societal attitudes that shaped early education in colonial America, highlighting the disparities and injustices that persisted within the schooling systems of that time.
Segregation in K-12 Education: The Jim Crow Era
This article delves into the segregated schooling system that existed during the Jim Crow Era, examining the disparities faced by African American students.
December 16, 2024
Personalized Learning: Revolutionizing Education for the 21st CenturyExplore the revolutionary approach of Personalized Learning in K-12 education. This article discusses the benefits, challenges, and potential of tailoring education to individual student needs, incorporating technology and adaptive learning methods to prepare students for the 21st century.
