La Serna High School is a public high school in Whittier, California that was founded in 1961 and is part of the Whittier Union High School District. The school has been honored five times as a California Distinguished School most recently in 2021. The school's colors are crimson, gold, and white.
Serving 2,372 students in grades 9-12, La Serna High School ranks in the top 30% 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 37% (which is higher than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 73% (which is higher than the California state average of 47%).
The student-teacher ratio of 26:1 is higher than the California state level of 21:1.
Minority enrollment is 90% of the student body (majority Hispanic), which is higher than the California state average of 80% (majority Hispanic).
Quick Facts (2026-27)
- Grades: 9-12
- Enrollment: 2,372 students
- Student-Teacher Ratio: 26:1
- Minority Enrollment: 90%
- Graduation Rate: 97% (Top 5% in CA)
- Overall Testing Rank: Top 30%
- Math Proficiency: 37% (Top 50%)
- Reading Proficiency: 73% (Top 10%)
- Science Proficiency: 35% (Top 50%)
- Attendance Zone: La Serna High serves the southeast part of Whittier, CA, encompassing an area of approximately 6.9 square miles. Families within this zone can typically expect a short drive of 5 to 10 minutes to reach the school, with the furthest edge being about 2.7 miles away.
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
Top Rankings
La Serna High School ranks among the top 20% of public schools in California for:
Category
Attribute
Reading/Language Arts Proficiency
Graduation Rate
School Overview
La Serna High School's student population of 2,372 students has declined by 7% over five school years.
The teacher population of 92 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
Total Students
2,372 students
Total Classroom Teachers
92 teachers
Year Founded
1961
School Rankings
La Serna High School ranks within the top 30% of all 9,523 schools in California (based off of combined math and reading proficiency testing data).
The diversity score of La Serna High School is 0.30, 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
#2075 out of 9523 schools
(Top 30%)
(Top 30%)
Math Test Scores (% Proficient)
37%
34%
Reading/Language Arts Test Scores (% Proficient)
73%
47%
Science Test Scores (% Proficient)
35%
29%
Student-Teacher Ratio
26:1
21:1
American Indian
1%
1%
Asian
4%
12%
Hispanic
83%
56%
Black
1%
5%
White
10%
20%
Hawaiian
n/a
n/a
Two or more races
1%
6%
All Ethnic Groups
Graduation Rate
97%
86.2%
Chronically Absent Students
(22-23)19.7%
27.7%
Eligible for Free Lunch
40%
54%
Eligible for Reduced Lunch
19%
8%
School Statewide Testing
School District Name
Sports
Colors
White, Crimson, Gold
School Mascot
Lancers
Source: National Center for Education Statistics (NCES), CA Dept. of Education
Frequently Asked Questions
What is La Serna High School's ranking?
La Serna High School is ranked #2075 out of 9,523 schools, which ranks it among the top 30% of public schools in California.
What schools are La Serna High School often compared to?
La Serna High Schoolis often viewed alongside schools like California High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
37% of students have achieved math proficiency (compared to the 34% CA state average), while 73% of students have achieved reading proficiency (compared to the 47% CA state average).
What is the graduation rate of La Serna High School?
The graduation rate of La Serna High School is 97%, which is higher than the California state average of 86.2%.
How many students attend La Serna High School?
2,372 students attend La Serna High School.
What is the racial composition of the student body?
83% of La Serna High School students are Hispanic, 10% of students are White, 4% of students are Asian, 1% of students are American Indian, 1% of students are Black, and 1% of students are Two or more races.
What is the student-teacher ratio of La Serna High School?
La Serna High School has a student ration of 26:1, which is higher than the California state average of 21:1.
What grades does La Serna High School offer ?
La Serna High School offers enrollment in grades 9-12
What school district is La Serna High School part of?
La Serna High School is part of Whittier Union High School District.
School Calendar
View the La Serna High School yearly calendar below. Note key dates such as:
Event
Date
Thanksgiving Break- no school
November 23, 2026 (Monday)
Thanksgiving Break- no school
November 24, 2026 (Tuesday)
Thanksgiving Break- no school
November 25, 2026 (Wednesday)
Thanksgiving Break- no school
November 26, 2026 (Thursday)
Thanksgiving Break- no school
November 27, 2026 (Friday)
School Reviews
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