San Mateo Union High School District

650 N. Delaware St.
San Mateo, CA 94401-1795
(District boundaries shown in map)
10/
10
Top 10%

Top Rankings

San Mateo Union High School District ranks among the top 20% of public school district in California for:

Category
Attribute
Overall Rank
Highest overall rank (Top 10%)
Math Proficiency
Highest math proficiency (Top 20%)
Reading/Language Arts Proficiency
Highest reading/language arts proficiency (Top 5%)
Science Proficiency
Highest science proficiency (Top 20%)
Diversity
Most diverse schools (Top 1%)
Community Size
Largest student body (number of students) (Top 1%)
For the 2024-25 school year, there are 7 public schools serving 8,899 students in San Mateo Union High School District. This district's average testing ranking is 10/10, which is in the top 10% of public schools in California.
Public Schools in San Mateo Union High School District have an average math proficiency score of 50% (versus the California public school average of 33%), and reading proficiency score of 76% (versus the 47% statewide average).
Minority enrollment is 75% of the student body (majority Hispanic), which is less than the California public school average of 79% (majority Hispanic).

Overview

This School District
This State (CA)
# Schools
7 Schools
10,356 Schools
# Students
8,899 Students
5,417,014 Students
# Teachers
455 Teachers
267,522 Teachers
Student : Teacher Ratio
20:1
20:1

District Rank

San Mateo Union High School District, which is ranked #180 of all 1,931 school districts in California (based off of combined math and reading proficiency testing data) for the 2021-2022 school year.
The school district's graduation rate of 92% has increased from 90% over five school years.
This School District
State Average (CA)
#185 out of 1941 school districts
(Top 10%)
This chart displays the overall district rank of San Mateo Union High  School District, with the latest 2021-22 school year data.
49%
33%
This chart displays the percentage of public school students that scored at or above 'proficient' levels in Math of San Mateo Union High  School District and the percentage of public school students that scored at or above 'proficient' levels in Math of California by year, with the latest 2021-22 school year data.
76%
47%
This chart displays the percentage of public school students that scored at or above 'proficient' levels in Reading/Language Arts of San Mateo Union High  School District and the percentage of public school students that scored at or above 'proficient' levels in Reading/Language Arts of California by year, with the latest 2021-22 school year data.
51%
29%
92%
87%
This chart displays public school graduation rate of San Mateo Union High  School District and public school graduation rate of California by year, with the latest 2021-22 school year data.

Students by Ethnicity:

0.74
0.64
# American Indian Students
4 Students
26,121 Students
% American Indian Students
n/a
1%
# Asian Students
2,495 Students
674,073 Students
% Asian Students
28%
12%
# Hispanic Students
3,093 Students
2,961,553 Students
% Hispanic Students
35%
55%
# Black Students
68 Students
259,506 Students
% Black Students
1%
5%
# White Students
2,222 Students
1,154,454 Students
% White Students
25%
21%
# Hawaiian Students
170 Students
23,322 Students
% Hawaiian Students
2%
n/a
# Two or more races Students
835 Students
308,275 Students
% of Two or more races Students
9%
6%

Students by Grade:

# Students in PK Grade:
-
83
# Students in K Grade:
-
453,108
# Students in 1st Grade:
-
377,045
# Students in 2nd Grade:
-
379,902
# Students in 3rd Grade:
-
389,364
# Students in 4th Grade:
-
393,571
# Students in 5th Grade:
-
398,624
# Students in 6th Grade:
-
408,040
# Students in 7th Grade:
-
409,922
# Students in 8th Grade:
-
405,290
# Students in 9th Grade:
2,064
448,034
# Students in 10th Grade:
2,120
448,656
# Students in 11th Grade:
2,294
451,880
# Students in 12th Grade:
2,421
453,495
# Ungraded Students:
-
-

District Revenue and Spending

The revenue/student of $29,479 is higher than the state median of $21,485. The school district revenue/student has grown by 15% over four school years.
The school district's spending/student of $25,781 is higher than the state median of $19,787. The school district spending/student has grown by 5% over four school years.
This School District
This State (CA)
Total Revenue
$262 MM
$116,387 MM
This chart displays total revenue of San Mateo Union High  School District and median value from total revenues of all school districts in California by year, with the latest 2020-21 school year data.
Spending
$229 MM
$107,188 MM
This chart displays total spending of San Mateo Union High  School District and median value from total spendings of all school districts in California by year, with the latest 2020-21 school year data.
Revenue / Student
$29,479
$21,485
This chart displays average revenue per public school student in San Mateo Union High  School District and average revenue per public school student of all school districts in California by year, with the latest 2020-21 school year data.
Spending / Student
$25,781
$19,787
This chart displays average spending per public school student in San Mateo Union High  School District and average spending per public school student of all school districts in California by year, with the latest 2020-21 school year data.

Best San Mateo Union High School District Public Schools (2024-25)

School
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
Mills High School
Magnet School
(Math: 70-74% | Reading: 80-84%)
Rank:
10/
10
Top 5%
400 Murchison Dr.
Millbrae, CA 94030
(650) 558-2599
Grades: 9-12
| 1,141 students
Rank: #22.
Aragon High School
Magnet School
(Math: 63% | Reading: 86%)
Rank:
10/
10
Top 10%
900 Alameda De Las Pulgas
San Mateo, CA 94402
(650) 558-2999
Grades: 9-12
| 1,740 students
Rank: #33.
Burlingame High School
Magnet School
(Math: 61% | Reading: 85%)
Rank:
10/
10
Top 10%
1 Mangini Way
Burlingame, CA 94010
(650) 558-2899
Grades: 9-12
| 1,519 students
Rank: #44.
Hillsdale High School
Magnet School
(Math: 44% | Reading: 71%)
Rank:
9/
10
Top 20%
3115 Del Monte St.
San Mateo, CA 94403
(650) 558-2699
Grades: 9-12
| 1,629 students
Rank: #55.
San Mateo High School
Magnet School
(Math: 45% | Reading: 68%)
Rank:
9/
10
Top 20%
506 N. Delaware St.
San Mateo, CA 94401
(650) 558-2399
Grades: 9-12
| 1,613 students
Rank: #66.
Capuchino High School
Magnet School
(Math: 26% | Reading: 68%)
Rank:
7/
10
Top 50%
1501 Magnolia Ave.
San Bruno, CA 94066
(650) 558-2799
Grades: 9-12
| 1,091 students
Rank: #77.
Peninsula High (Continuation School)
Alternative School
Magnet School
(Math: ≤10% | Reading: 11-19%)
Rank:
1/
10
Bottom 50%
860 Hinckley Rd.
Burlingame, CA 94010
(650) 558-2402
Grades: 9-12
| 166 students

Frequently Asked Questions

How many schools belong to San Mateo Union High School District?
San Mateo Union High School District manages 7 public schools serving 8,899 students.
What is the rank of San Mateo Union High School District?
San Mateo Union High School District is ranked #180 out of 1,931 school districts in California (top 10%) based off of combined math and reading proficiency testing data for the 2021-2022 school year. This district ranks in the top 20% of California school districts for: Highest overall rank (Top 10%), Highest math proficiency (Top 20%), Highest reading/language arts proficiency (Top 5%), Highest science proficiency (Top 20%), Most diverse schools (Top 1%) and Largest student body (number of students) (Top 1%)
What is the racial composition of students in San Mateo Union High School District?
35% of San Mateo Union High School District students are Hispanic, 28% of students are Asian, 25% of students are White, 9% of students are Two or more races, 2% of students are Hawaiian, and 1% of students are Black.
What is the student/teacher ratio of San Mateo Union High School District?
San Mateo Union High School District has a student/teacher ratio of 20:1, which is lower than the California state average of 22:1.
What is San Mateo Union High School District's spending/student ratio?
The school district's spending/student of $25,781 is higher than the state median of $19,787. The school district spending/student has grown by 5% over four school years.

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Quick Stats (2024-25)

  • District size: 7 schools
  • Grades: 09-12
  • Enrollment: 8,899 students
  • Student:Teacher Ratio: 20:1
  • Minority Enrollment: 75%
  • : 92% (Top 30% in CA)
  • : Top 10%
  • : 49% (Top 20%)
  • : 76% (Top 5%)
  • : 51% (Top 20%)
  • Source: National Center for Education Statistics (NCES), CA Dept. of Education

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