The bulletin board for America's public schools. Parents, teachers, students, and staff. One community per school.
SCHOOL COMMUNITY·MOUNTAIN VIEW-LOS ALTOS UNION HIGH·NCES 062631003929

Los Altos High

201 Almond Ave., Los Altos, CA 94022 · (650) 940-8812 · Santa Clara County
GRADES 09–12HIGH21-SUBURBREGULAR SCHOOL2,170 STUDENTS
A-
allk12 Grade
Scored higher than 79% of California public high schools
  • ATest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • BBeats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
  • DThree-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
2,170
High
DISTRICT 1,478 · STATE 838
Student : Teacher
18.1:1
120 FTE teachers
DISTRICT 16.8:1 · STATE 18.2:1
Free / Reduced Lunch
17%
359 students
DISTRICT 26% · 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 955826%
Grade 1050523%
Grade 1156026%
Grade 1254725%
Student demographics
73%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 73% · STATE 62% · US 70%
White
63029%
DISTRICT 31% · STATE 20% · US 43%
Hispanic
60728%
DISTRICT 25% · STATE 56% · US 30%
Black
131%
DISTRICT 1% · STATE 5% · US 15%
Asian
66030%
DISTRICT 30% · STATE 12% · US 6%
Two+
22610%
DISTRICT 11% · STATE 6% · US 5%
Native American
40%
DISTRICT 0% · STATE 0% · US 1%
Pacific Islander
90%
DISTRICT 1% · 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
1,06049%
Female
1,08950%

Discussions

+ POST

Test scores

CAASPP 2024-25 . % met or exceeded standard
English Language Arts
78.8%
CA avg 49.1% . -2.2pp since 2014
Math
68.8%
CA avg 37.7% . -3.2pp since 2014

What this means: On the CAASPP, California's statewide test, about 79 of every 100 students at this school read and write at grade level and about 69 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 2 points since 2014, while math scores are down about 3 points.

Performance levels, 2024-25

SubjectStandard ExceededStandard MetStandard Nearly MetStandard Not Met
English Language Arts55.1%23.7%11.0%10.2%
Math49.8%19.0%11.8%19.4%
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
2024-2578.8%68.8%
2023-2476.3%66.5%
2022-2384.1%70.0%
2021-2284.8%69.7%
2020-2183.3%74.0%
2018-1984.9%70.6%
2017-1881.8%70.5%
2016-1781.8%69.6%
2015-1670.0%67.0%
2014-1581.0%72.0%
% 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
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
72.6%
composite math + reading, all grades
Predicted
69.8%
based on CA schools with similar FRL share
Beats by
+2.8pp
above demographic expectation

What this means: About 73% of students here test proficient in math and reading, compared with the roughly 70% typical for California schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among California's top nor bottom 10%.

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 Los Altos High

Los Altos High's state test result (72.6% proficient) is higher than 3 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Los Altos High this school2,17016.5%72.6%
Aragon High
San Mateo
1,65816.8%69.0%
Mountain View High
Mountain View
2,18712.7%75.0%
South Pasadena Senior High
South Pasadena
1,53615.0%76.0%
Mt. Carmel High
San Diego
1,80017.4%65.4%
Leigh High
San Jose
1,88418.0%70.3%
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 Los Altos High ranks

Among high schools
MeasureThis schoolIn CaliforniaIn Santa Clara County
State test proficiency
ranked highest first
72.6%#66 of 1,052#12 of 43
Math proficiency
ranked highest first
68.8%#48 of 1,056
▼ 2
#9 of 43
▲ 3
Reading proficiency
ranked highest first
78.8%#114 of 1,056
▲ 22
#12 of 43
no change
3-year test score change
ranked biggest drop first
-3.5pp#188 of 1,044#18 of 42
Enrollment
ranked largest first
2,170#200 of 2,093#6 of 76
Students per teacher
ranked fewest first
18.1:1#299 of 1,352#11 of 57
Diversity index
ranked most diverse first
72.9%#48 of 1,351#3 of 57
Free and reduced lunch
ranked highest share first
16.5%#1,514 of 1,575#57 of 67
Enrollment change since 2017-18
ranked steepest decline first
-2.9%#713 of 802#37 of 39
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
2,170
-39 (-2%) vs 2020
+56% since 1990-91, when it was 1,392
Student : Teacher
18.1:1
was 19.2:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-252,170119.918.1:117% (359)
2023-242,114113.618.6:115% (326)
2022-232,141117.118.3:113% (276)
2020-212,20911519.2:113% (278)
2017-182,234110.820.2:121% (460)
2015-162,0449721.1:115% (311)
2010-111,660N/AN/A20% (335)
2000-011,3826920.0:16% (82)
1990-911,3927119.6:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Los Altos High.

Since 2017-18: students down 3% (2,234 to 2,170); teachers up 8% (110.8 to 119.9).

About Los Altos High

Los Altos High is a high-enrollment high school found in Los Altos, California. The school counted 2,170 students in 2024-25, covering grades 9 through 12. That puts enrollment 159% larger than the 838-student average for high schools in California.

Los Altos High reports to Mountain View-Los Altos Union High, which has 3 schools and 4,435 students.

The largest group at Los Altos High is Asian students, at 30%. Smaller groups are 29% White, 28% Hispanic, and 10% multiracial. For comparison, the population of Santa Clara County is roughly 41% Asian. The diversity index for Los Altos High is 73%. For US public schools as a whole it is 70%.

Los Altos High has a student-to-teacher ratio of 18.1:1, with 119.9 full-time-equivalent teachers. The average for high schools in California is about 18.2:1. A common income measure, free or reduced-price lunch eligibility, is 17% at Los Altos High. Across public schools in Santa Clara County, the average is 37%.

Among California public high schools, Los Altos High outscored 79%, which works out to an A- on the allk12 Grade.

On BeatsExpectations, Los Altos High is 2.8 points above its prediction, a result in the middle 80% of California schools.

The school is in Santa Clara County, where the median household earns about $164,281 a year, a bachelor's degree or higher is held by about 57% of adults, and the share of residents below the poverty line is 4%. Los Altos High shares Santa Clara County with 411 other public schools.

The closest school to Los Altos High is Almond Elementary, located about 0.4 miles away. The count of other public schools within five miles is at least 8. Its average proficiency rate of 72.6% is above the 68.8% average for nearby schools.

For locale, NCES codes Los Altos High as Suburb: Large.

Enrollment in 2024-25 was 2,170, close to the 2,209 recorded in 2020-21. Students per teacher dropped from 19.2 in 2020-21 to 18.1 in 2024-25.

This page is a place to ask questions and share updates about open houses, carpools, and field trips at Los Altos High. Members of the school community can share what they know.

Santa Clara County at a glance

View full county profile
Population
1,902,047
Census ACS
Median income
$164,281
Household, ACS
Bachelor's+
57%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
412
230,059 students

Quick facts

School name
Los Altos High
District
Mountain View-Los Altos Union High
Address
201 Almond Ave., Los Altos, CA 94022
Phone
(650) 940-8812
County
Santa Clara County
Level
High
Grade range
09–12
Total enrollment
2,170
Teachers (FTE)
120
Student–teacher ratio
18.1:1
Free and reduced lunch
359 (17%)
Locale
21-Suburb: Large
NCES ID
062631003929
Charter school
No
Virtual school
No

Related schools

Other schools in Mountain View-Los Altos Union High
Other schools in Los Altos
Other Los Altos High schools

One other US public school is named Los Altos High. Los Altos High is the largest of the 2.

Nearby schools

Frequently asked questions

About Los Altos High
How many students attend Los Altos High?
Los Altos High enrolls approximately 2,170 students in grades 09-12.
Is Los Altos High an elementary, middle, or high school?
Los Altos High is a high school covering grades 09-12.
How many teachers does Los Altos High have?
Los Altos High employs 120 FTE teachers, for a student-to-teacher ratio of 18.1:1.
What is the racial breakdown of students at Los Altos High?
At Los Altos High, the student body is approximately 29% White, 28% Hispanic, 1% Black, 30% Asian, 10% Two or more.
Who oversees Los Altos High?
Los Altos High is overseen by Mountain View-Los Altos Union High in Santa Clara County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
+ Post
Los Altos High · Reviews, news, discussion (Los Altos, CA) · allk12