San Dieguito High School Academy, originally known as San Dieguito Union High School and San Dieguito High School, is a public high school in Encinitas, California. It is part of San Dieguito Union High School District. The school was established in 1936.
Serving 1,843 students in grades 9-12, San Dieguito High School Academy ranks in the top 20% of all schools in California for overall test scores (math proficiency is top 20%, and reading proficiency is top 20%).
The percentage of students achieving proficiency in math is 54% (which is higher than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 70% (which is higher than the California state average of 47%).
The student-teacher ratio of 25:1 is higher than the California state level of 21:1.
Minority enrollment is 39% of the student body (majority Hispanic), which is lower than the California state average of 80% (majority Hispanic).
Quick Facts (2026)
- Grades: 9-12
- Enrollment: 1,843 students
- Student-Teacher Ratio: 25:1
- Minority Enrollment: 39%
- Graduation Rate: 97% (Top 5% in CA)
- Overall Testing Rank: Top 20%
- Math Proficiency: 54% (Top 20%)
- Reading Proficiency: 70% (Top 20%)
- Science Proficiency: 47% (Top 20%)
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
Top Rankings
San Dieguito High School Academy ranks among the top 20% of public schools in California for:
Category
Attribute
Overall Rank
Math Proficiency
Reading/Language Arts Proficiency
Science Proficiency
Graduation Rate
School Overview
San Dieguito High School Academy's student population of 1,843 students has declined by 10% over five school years.
The teacher population of 75 teachers has declined by 7% over five school years.
Grades Offered
Grades 9-12
Total Students
1,843 students
Total Classroom Teachers
75 teachers
Year Founded
1936
Colors
White, Navy Blue
School Calendar
School Rankings
San Dieguito High School Academy ranks within the top 20% of all 9,523 schools in California (based off of combined math and reading proficiency testing data).
The diversity score of San Dieguito High School Academy is 0.56, 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
#1378 out of 9523 schools
(Top 20%)
(Top 20%)
Math Test Scores (% Proficient)
54%
34%
Reading/Language Arts Test Scores (% Proficient)
70%
47%
Science Test Scores (% Proficient)
47%
29%
Student-Teacher Ratio
25:1
21:1
American Indian
n/a
1%
Asian
4%
12%
Hispanic
25%
56%
Black
1%
5%
White
61%
20%
Hawaiian
n/a
n/a
Two or more races
9%
6%
All Ethnic Groups
Graduation Rate
97%
87%
Eligible for Free Lunch
20%
54%
Eligible for Reduced Lunch
5%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CA Dept. of Education
School Notes
- School Mascot: Mustang
Frequently Asked Questions
What is San Dieguito High School Academy's ranking?
San Dieguito High School Academy is ranked #1378 out of 9,523 schools, which ranks it among the top 20% of public schools in California.
What schools are San Dieguito High School Academy often compared to?
San Dieguito High School Academyis often viewed alongside schools like La Costa Canyon High School, Canyon Crest Academy by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
54% of students have achieved math proficiency (compared to the 34% CA state average), while 70% of students have achieved reading proficiency (compared to the 47% CA state average).
What is the graduation rate of San Dieguito High School Academy?
The graduation rate of San Dieguito High School Academy is 97%, which is higher than the California state average of 87%.
How many students attend San Dieguito High School Academy?
1,843 students attend San Dieguito High School Academy.
What is the racial composition of the student body?
61% of San Dieguito High School Academy students are White, 25% of students are Hispanic, 9% of students are Two or more races, 4% of students are Asian, and 1% of students are Black.
What is the student-teacher ratio of San Dieguito High School Academy?
San Dieguito High School Academy has a student ration of 25:1, which is higher than the California state average of 21:1.
What grades does San Dieguito High School Academy offer ?
San Dieguito High School Academy offers enrollment in grades 9-12
What school district is San Dieguito High School Academy part of?
San Dieguito High School Academy is part of San Dieguito Union High School District.
School Reviews
5 10/10/2025
I absolutely loved attending this school. Though students will always say the true SDA spirit is beginning to fade as the district attempts to alter the unique 4x4 schedule and implement new rules which affect the high level of student freedom, the other high schools in the area just can't compare. The facilities themselves are not nice, they are old, but completely endearing once you have attended this school. Perfect for people who are into music and arts, not so much for anyone looking for a sporty school. Excellent teachers as well.
Review San Dieguito High School Academy. Reviews should be a few sentences in length. Please include any comments on:
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