3850 E. Riverside Dr.
Ontario, CA 91761
(School attendance zone shown in map)
Rating
7/
10
Top 50%
Colony High School serves 2,173 students in grades 9-12.
Colony High School placed in the top 50% of all schools in California for overall test scores (math proficiency is top 50%, and reading proficiency is top 30%) for the 2018-19 school year.
The percentage of students achieving proficiency in math is 35% (which is lower than the California state average of 40%) for the 2018-19 school year. The percentage of students achieving proficiency in reading/language arts is 60% (which is higher than the California state average of 51%) for the 2018-19 school year.
The student:teacher ratio of 24:1 is higher than the California state level of 23:1.
Minority enrollment is 92% of the student body (majority Hispanic), which is higher than the California state average of 77% (majority Hispanic).

School Overview

Colony High School's student population of 2,173 students has stayed relatively flat over five school years.
The teacher population of 92 teachers has grown by 9% over five school years.
Grades Offered
Grades 9-12
Total Students
2,173 students
This chart display total students of Colony High School by year, with the latest 2017-18 school year data.
Gender %
This chart display gender of Colony High School
Total Classroom Teachers
92 teachers
This chart display the total teachers of Colony High School by year, with the latest 2017-18 school year data.
Students by Grade
This chart display the students of Colony High School by grade.

School Rankings

Colony High School is ranked within the top 50% of all 9,659 schools in California (based off of combined math and reading proficiency testing data) for the 2018-19 school year.
The diversity score of Colony High School is 0.46, which is less than the diversity score at state average of 0.64. The school's diversity has stayed relatively flat over five school years.
Definition of Terms 2017-2018 School Year Data
This School
State Level (CA)
Overall Testing Rank
#3841 out of 9659 schools
(Top 50%)
This chart display the overall school rank of Colony High School, with the latest 2018-19 school year data.
Math Test Scores (% Proficient)
35%
40%
This chart display the percentage of students that scored at or above 'proficient' levels in Math of Colony High School and the percentage of public school students that scored at or above 'proficient' levels in Math of public schools in California by year, with the latest 2018-19 school year data.
Reading/Language Arts Test Scores (% Proficient)
60%
51%
This chart display the percentage of students that scored at or above 'proficient' levels in Reading/Language Arts of Colony High School and the percentage of public school students that scored at or above 'proficient' levels in Reading/Language Arts of California by year, with the latest 2018-19 school year data.
Student : Teacher Ratio
24:1
23:1
This chart display the student teacher ratio of Colony High School and the public school average student teacher ratio of California by year, with the latest 2017-18 school year data.
American Indian
n/a
1%
This chart display the percentage of American Indian students in Colony High School and percentage of American Indian public school students in California by year, with the latest 2003-04 school year data.
Asian
6%
12%
This chart display the percentage of Asian students in Colony High School and the percentage of Asian public school students in California by year, with the latest 2017-18 school year data.
Hispanic
72%
54%
This chart display the percentage of Hispanic students in Colony High School and the percentage of Hispanic public school students in California by year, with the latest 2017-18 school year data.
Black
11%
5%
This chart display the percentage of Black students in Colony High School and the percentage of Black public school students in California by year, with the latest 2017-18 school year data.
White
8%
23%
This chart display the percentage of White students in Colony High School and the percentage of White public school students in California by year, with the latest 2017-18 school year data.
Hawaiian
n/a
1%
This chart display the percentage of Hawaiian students in Colony High School and the percentage of Hawaiian public school students in California by year, with the latest 2013-14 school year data.
Two or more races
3%
4%
This chart display the percentage of students of two or more races in Colony High School and the percentage of public school students of two or more races in California by year, with the latest 2017-18 school year data.
All Ethnic Groups
This chart display the percentage breakdown of students of all ethnic groups in Colony High School.
This chart display the percentage breakdown of public school students of all ethnic groups in CA.
Diversity Score
0.46
This chart display the diversity score of Colony High School and the public school average diversity score of California by year, with the latest 2017-18 school year data.
Graduation Rate
93%
84%
This chart display graduation rate of Colony High School and public school graduation rate of California by year, with the latest 2018-19 school year data.
Eligible for Free Lunch
58%
53%
This chart display the percentage of students who is eligible for free lunch in Colony High School and the percentage of public school students who is eligible for free lunch in California by year, with the latest 2017-18 school year data.
Eligible for Reduced Lunch
16%
7%
This chart display the percentage of students who is eligible for reduced lunch in Colony High School and the percentage of public school students who is eligible for reduced lunch in California by year, with the latest 2017-18 school year data.
Source: 2017-2018 (latest school year available) NCES, CA Dept. of Education

School Reviews

5  
Excellent school. Students well-involved in sports, and love to show school spirit(:
- Posted by

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Quick Stats (2021-22)

  • Grades: 9-12
  • Students: 2,173 students
  • Student:Teacher Ratio: 24:1
  • Minority Enrollment: 92%
  • Graduation Rate
    : 93% (Top 30% in CA)
  • Overall Testing Rank
    : Top 50%
  • Math Proficiency
    : 35% (Top 50%)
  • Reading Proficiency
    : 60% (Top 30%)
  • Diversity Score
    : 0.46 (Btm 50%)

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