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SCHOOL COMMUNITY·SAN MATEO UNION HIGH·NCES 063498005921

Capuchino High

1501 Magnolia Ave., San Bruno, CA 94066 · (650) 558-2799 · San Mateo County
GRADES 09–12HIGH21-SUBURBREGULAR SCHOOL1,061 STUDENTS
C-
allk12 Grade
Scored higher than 21% of California public high schools
  • B-Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • DBeats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
  • C-Three-year trend Change in reading and math proficiency over the last three test years.

Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded California public high schools

Enrollment
1,061
High
DISTRICT 1,092 · STATE 838
Student : Teacher
18.6:1
57 FTE teachers
DISTRICT 18.0:1 · STATE 18.2:1
Free / Reduced Lunch
34%
363 students
DISTRICT 35% · STATE 65%
Community
6
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Grade 924723%
Grade 1028327%
Grade 1125024%
Grade 1228126%
Student demographics
63%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 72% · STATE 62% · US 70%
White
17416%
DISTRICT 24% · STATE 20% · US 43%
Hispanic
58455%
DISTRICT 35% · STATE 56% · US 30%
Black
81%
DISTRICT 1% · STATE 5% · US 15%
Asian
18317%
DISTRICT 29% · STATE 12% · US 6%
Two+
676%
DISTRICT 9% · STATE 6% · US 5%
Pacific Islander
434%
DISTRICT 2% · STATE 0% · US 0%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
56753%
Female
49246%

Discussions

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Test scores

CAASPP 2024-25 . % met or exceeded standard
English Language Arts
61.0%
CA avg 49.1% . -12.0pp since 2014
Math
25.9%
CA avg 37.7% . -15.1pp since 2014

What this means: On the CAASPP, California's statewide test, about 61 of every 100 students at this school read and write at grade level and about 26 of 100 do math at grade level. Across all California schools, those numbers are about 49 and 38. Reading and writing scores are down about 12 points since 2014, while math scores are down about 15 points.

Performance levels, 2024-25

SubjectStandard ExceededStandard MetStandard Nearly MetStandard Not Met
English Language Arts29.1%31.8%19.3%19.7%
Math8.2%17.7%22.3%51.8%
Share of tested students at each CAASPP level. Each student counts in one level, so a row adds to about 100%.

CAASPP results by year

School yearEnglish Language ArtsMath
2024-2561.0%25.9%
2023-2453.3%21.5%
2022-2371.3%33.5%
2021-2267.7%26.1%
2018-1960.8%33.7%
2017-1863.5%31.9%
2016-1772.6%42.8%
2015-1675.0%45.0%
2014-1573.0%41.0%
% met or exceeded standard, all students and all tested grades.
Source: CAASPP. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
UNDERPERFORMING
Bottom 10% of CA schools after controlling for student poverty
Actual proficiency
40.4%
composite math + reading, all grades
Predicted
59.5%
based on CA schools with similar FRL share
Beats by
-19.1pp
below demographic expectation

What this means: About 40% of students here test proficient in math and reading, below the roughly 59% typical for California schools with a similar share of low-income students. BeatsExpectations compares each school with others at the same poverty level, not by raw scores, so a school lands here when its results trail those comparable schools, which is not the same as having low scores. A higher-scoring school can still fall in this tier if similar schools score higher still.

BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

Schools most like Capuchino High

Capuchino High's state test result (40.4% proficient) is higher than 0 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Capuchino High this school1,06134.2%40.4%
San Dimas High
San Dimas
1,23537.6%61.9%
Ann Sobrato High
Morgan Hill
1,51130.3%53.5%
San Mateo High
San Mateo
1,55738.1%54.2%
Newark Memorial High
Newark
1,36738.9%40.6%
Christopher High
Gilroy
1,63038.0%44.6%
Matched among California high schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.

Where Capuchino High ranks

Among high schools
MeasureThis schoolIn CaliforniaIn San Mateo County
State test proficiency
ranked highest first
40.4%#516 of 1,052#15 of 17
Math proficiency
ranked highest first
25.9%#509 of 1,056
▲ 61
#14 of 17
▲ 2
Reading proficiency
ranked highest first
61.0%#450 of 1,056
▲ 136
#11 of 17
▲ 4
3-year test score change
ranked biggest drop first
-3.5pp#192 of 1,044#7 of 17
Enrollment
ranked largest first
1,061#743 of 2,093#13 of 35
Students per teacher
ranked fewest first
18.6:1#353 of 1,352#11 of 23
Diversity index
ranked most diverse first
63.3%#309 of 1,351#10 of 23
Free and reduced lunch
ranked highest share first
34.2%#1,366 of 1,575#15 of 28
Enrollment change since 2017-18
ranked steepest decline first
-12.5%#372 of 802#7 of 14
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
1,061
-126 (-11%) vs 2020
+7% since 1990-91, when it was 989
Student : Teacher
18.6:1
was 20.1:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-251,0615718.6:134% (363)
2023-241,10857.819.2:127% (299)
2022-231,09161.617.7:128% (308)
2020-211,1875920.1:132% (381)
2017-181,21360.520.1:136% (432)
2015-161,1275819.4:121% (239)
2010-111,121N/AN/A33% (370)
2000-011,1235321.2:17% (84)
1990-919894920.2:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Capuchino High.

Since 2017-18: students down 13% (1,213 to 1,061); teachers down 6% (60.5 to 57).

About Capuchino High

Capuchino High is a medium-sized high school in San Bruno, California, under San Mateo Union High. Students in grades 9 through 12 attend the school, which enrolls 1,061 students. The average among high schools in California is roughly 838 students; this school is 27% bigger than that.

San Mateo Union High counts 8 schools and 8,736 students, including Capuchino High.

At Capuchino High, Hispanic students make up 55% of the student body. The next largest groups are 17% Asian, 16% White, 6% multiracial, and 4% Pacific Islander. The school's Hispanic share is 30 points above the 25% share among San Mateo County residents. The school's diversity index is 63%, meaning two students picked at random have a 63% chance of belonging to different racial or ethnic groups.

The school reported 57 full-time-equivalent teachers in 2024-25 and a ratio of 18.6:1. For comparison, high schools in California average 18.2:1. Free or reduced-price lunch eligibility is 34%. That tracks the 34% average for public schools in San Mateo County.

Measured against California public high schools, Capuchino High receives a C-. The grade weighs proficiency most heavily, then how results compare with what the school's low-income share predicts, then the three-year change.

Capuchino High ranks in the bottom 10% of California schools after adjusting test results for student poverty. Actual: 40.4%. Predicted: 59.5%. Difference: 19.1 points.

In San Mateo County (population about 742,340), the median household income is $158,855, the share of adults with a bachelor's degree or higher is 54%, and roughly 4% of residents are in poverty. Capuchino High is one of 176 public schools in the county.

The shortest distance from Capuchino High to another public school is about 0.3 miles, to Green Hills Elementary. Other public schools within five miles: at least 8. The nearest schools with test data average 52.9%, higher than Capuchino High's 40.4%.

By NCES locale, the school is Suburb: Large, or in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.

The school enrolled 1,061 students in 2024-25, 126 fewer than the 1,187 it had in 2020-21. Federal data show the ratio falling from 20.1:1 to 18.6:1.

Topics for discussion here include science fairs, picture day, and bus routes. Anyone with firsthand experience at this school can post or comment.

San Mateo County at a glance

View full county profile
Population
742,340
Census ACS
Median income
$158,855
Household, ACS
Bachelor's+
54%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
176
82,403 students

Quick facts

School name
Capuchino High
District
San Mateo Union High
Address
1501 Magnolia Ave., San Bruno, CA 94066
Phone
(650) 558-2799
County
San Mateo County
Level
High
Grade range
09–12
Total enrollment
1,061
Teachers (FTE)
57
Student–teacher ratio
18.6:1
Free and reduced lunch
363 (34%)
Locale
21-Suburb: Large
NCES ID
063498005921
Charter school
No
Virtual school
No

Related schools

Other schools in San Mateo Union High
Other schools in San Bruno
Nearby schools

Frequently asked questions

About Capuchino High
What is the total enrollment at Capuchino High?
Capuchino High enrolls approximately 1,061 students in grades 09-12.
What grades does Capuchino High serve?
Capuchino High serves grades 09-12.
How many students per teacher at Capuchino High?
Approximately 18.6:1 students per teacher at Capuchino High.
How diverse is Capuchino High?
Capuchino High reports a student body of 16% White, 55% Hispanic, 1% Black, 17% Asian, 6% Two or more.
What district is Capuchino High in?
Capuchino High is part of San Mateo Union High.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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