San Ysidro High School is a public four-year high school in San Diego, California. Serving grade levels 9–12, it was founded in 2002 and is part of Sweetwater Union High School District. SYHS predominantly serves San Ysidro and other parts of San Diego with a student enrollment of 2,408.
Serving 1,941 students in grades 9-12, San Ysidro High School ranks in the bottom 50% of all schools in California for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 17% (which is lower than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 39% (which is lower than the California state average of 47%).
The student-teacher ratio of 23:1 is higher than the California state level of 21:1.
Minority enrollment is 97% of the student body (majority Hispanic), which is higher than the California state average of 80% (majority Hispanic).
Quick Facts (2026)
- Grades: 9-12
- Enrollment: 1,941 students
- Student-Teacher Ratio: 23:1
- Minority Enrollment: 97%
- Graduation Rate: 88% (Top 50% in CA)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: 17% (Btm 50%)
- Reading Proficiency: 39% (Btm 50%)
- Science Proficiency: 15% (Btm 50%)
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
School Overview
San Ysidro High School's student population of 1,941 students has declined by 20% over five school years.
The teacher population of 84 teachers has declined by 13% over five school years.
Grades Offered
Grades 9-12
Total Students
1,941 students
Total Classroom Teachers
84 teachers
Year Founded
2002
Colors
Cougars
School Calendar
School Rankings
San Ysidro High School ranks within the bottom 50% of all 9,523 schools in California (based off of combined math and reading proficiency testing data).
The diversity score of San Ysidro High School is 0.19, 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
#6303 out of 9523 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
17%
34%
Reading/Language Arts Test Scores (% Proficient)
39%
47%
Science Test Scores (% Proficient)
15%
29%
Student-Teacher Ratio
23:1
21:1
Asian
3%
12%
Hispanic
90%
56%
Black
2%
5%
White
3%
20%
Two or more races
2%
6%
All Ethnic Groups
Graduation Rate
88%
87%
Chronically Absent Students
(22-23)46.4%
27.7%
Eligible for Free Lunch
68%
54%
Eligible for Reduced Lunch
11%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CA Dept. of Education
School Notes
- School Mascot: Cougar
Frequently Asked Questions
What is San Ysidro High School's ranking?
San Ysidro High School is ranked #6303 out of 9,523 schools, which ranks it among the bottom 50% of public schools in California.
What schools are San Ysidro High School often compared to?
San Ysidro High Schoolis often viewed alongside schools like Eastlake High School, Olympian High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
17% of students have achieved math proficiency (compared to the 34% CA state average), while 39% of students have achieved reading proficiency (compared to the 47% CA state average).
What is the graduation rate of San Ysidro High School?
The graduation rate of San Ysidro High School is 88%, which is higher than the California state average of 87%.
How many students attend San Ysidro High School?
1,941 students attend San Ysidro High School.
What is the racial composition of the student body?
90% of San Ysidro High School students are Hispanic, 3% of students are Asian, 3% of students are White, 2% of students are Black, and 2% of students are Two or more races.
What is the student-teacher ratio of San Ysidro High School?
San Ysidro High School has a student ration of 23:1, which is higher than the California state average of 21:1.
What grades does San Ysidro High School offer ?
San Ysidro High School offers enrollment in grades 9-12
What school district is San Ysidro High School part of?
San Ysidro High School is part of Sweetwater Union High School District.
In what neighborhood is San Ysidro High School located?
San Ysidro High School is located in the Otay Mesa neighborhood of San Diego, CA.
School Reviews
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