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
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.
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?
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Quick Stats (2025)
Grades: 7-12
Enrollment: 1,761 students
Student:Teacher Ratio: 19:1
Minority Enrollment: 83%
Graduation Rate
: 95% (Top 30%)
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
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