Serving 1,761 students in grades 7-12, Costa Mesa High School ranks in the top 50% of all schools in California for overall test scores (math proficiency is top 50%, and reading proficiency is top 50%).
The percentage of students achieving proficiency in math is 29% (which is lower than the California state average of 33%). The percentage of students achieving proficiency in reading/language arts is 50% (which is higher than the California state average of 47%).
The student:teacher ratio of 19:1 is lower than the California state level of 21:1.
Minority enrollment is 83% of the student body (majority Hispanic), which is higher than the California state average of 80% (majority Hispanic).
Quick Stats (2025)
- Grades: 7-12
- Enrollment: 1,761 students
- Student:Teacher Ratio: 19:1
- Minority Enrollment: 83%
- Graduation Rate: 95% (Top 30% in CA)
- Overall Testing Rank: Top 50%
- Math Proficiency: 29% (Top 50%)
- Reading Proficiency: 50% (Top 50%)
- Science Proficiency: 30% (Top 50%)
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
School Overview
Costa Mesa High School's student population of 1,761 students has stayed relatively flat over five school years.
The teacher population of 94 teachers has grown by 10% over five school years.
Grades Offered
Grades 7-12
Total Students
1,761 students
Gender %
Total Classroom Teachers
94 teachers
Students by Grade
School Rankings
Costa Mesa High School ranks within the top 50% of all 9,602 schools in California (based off of combined math and reading proficiency testing data).
The diversity score of Costa Mesa High School is 0.48, which is less than the diversity score at state average of 0.63. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#3903 out of 9602 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
29%
33%
Reading/Language Arts Test Scores (% Proficient)
50%
47%
Science Test Scores (% Proficient)
30%
29%
Student : Teacher Ratio
19:1
21:1
American Indian
n/a
1%
Asian
6%
12%
Hispanic
70%
56%
Black
1%
5%
White
17%
20%
Hawaiian
1%
n/a
Two or more races
5%
6%
All Ethnic Groups
Graduation Rate
95%
87%
Eligible for Free Lunch
62%
54%
Eligible for Reduced Lunch
13%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CA Dept. of Education
Frequently Asked Questions
What is Costa Mesa High School's ranking?
Costa Mesa High School is ranked #3903 out of 9,602 schools, which ranks it among the top 50% of public schools in California.
What schools are Costa Mesa High School often compared to?
Costa Mesa High Schoolis often viewed alongside schools like Newport Harbor High School, Estancia High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
29% of students have achieved math proficiency (compared to the 33% CA state average), while 50% of students have achieved reading proficiency (compared to the 47% CA state average).
What is the graduation rate of Costa Mesa High School?
The graduation rate of Costa Mesa High School is 95%, which is higher than the California state average of 87%.
How many students attend Costa Mesa High School?
1,761 students attend Costa Mesa High School.
What is the racial composition of the student body?
70% of Costa Mesa High School students are Hispanic, 17% of students are White, 6% of students are Asian, 5% of students are Two or more races, 1% of students are Black, and 1% of students are Hawaiian.
What is the student:teacher ratio of Costa Mesa High School?
Costa Mesa High School has a student ration of 19:1, which is lower than the California state average of 21:1.
What grades does Costa Mesa High School offer ?
Costa Mesa High School offers enrollment in grades 7-12
What school district is Costa Mesa High School part of?
Costa Mesa High School is part of Newport-Mesa Unified School District.
In what neighborhood is Costa Mesa High School located?
Costa Mesa High School is located in the Mesa Del Mar neighborhood of Costa Mesa, CA. There are 3 other public schools located in Mesa Del Mar.
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