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SCHOOL COMMUNITY·TAMALPAIS UNION HIGH·NCES 063879006526

Tamalpais High

700 Miller Ave., Mill Valley, CA 94941 · (415) 380-3510 · Marin County
GRADES 09–12HIGH21-SUBURBREGULAR SCHOOL1,470 STUDENTS
B-
allk12 Grade
Scored higher than 53% 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.
  • C-Beats 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
1,470
High
DISTRICT 901 · STATE 838
Student : Teacher
19.2:1
77 FTE teachers
DISTRICT 15.1:1 · STATE 18.2:1
Free / Reduced Lunch
12%
173 students
DISTRICT 13% · 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 933123%
Grade 1037926%
Grade 1134123%
Grade 1241929%
Student demographics
49%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 49% · STATE 62% · US 70%
White
1,01369%
DISTRICT 69% · STATE 20% · US 43%
Hispanic
17412%
DISTRICT 14% · STATE 56% · US 30%
Black
483%
DISTRICT 2% · STATE 5% · US 15%
Asian
765%
DISTRICT 5% · STATE 12% · US 6%
Two+
14810%
DISTRICT 10% · STATE 6% · US 5%
Native American
30%
DISTRICT 0% · STATE 0% · US 1%
Pacific Islander
40%
DISTRICT 0% · 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
78253%
Female
68447%

Discussions

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Test scores

CAASPP 2024-25 . % met or exceeded standard
English Language Arts
70.7%
CA avg 49.1% . -0.3pp since 2014
Math
53.4%
CA avg 37.7% . +1.4pp since 2014

What this means: On the CAASPP, California's statewide test, about 71 of every 100 students at this school read and write at grade level and about 53 of 100 do math at grade level. Across all California schools, those numbers are about 49 and 38. Reading and writing scores have held steady since 2014, while math scores are up about 1 points.

Performance levels, 2024-25

SubjectStandard ExceededStandard MetStandard Nearly MetStandard Not Met
English Language Arts42.3%28.4%11.7%17.6%
Math27.3%26.1%21.2%25.5%
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
2024-2570.7%53.4%
2023-2477.4%55.9%
2022-2378.4%60.9%
2021-2278.7%59.7%
2020-2176.2%62.5%
2018-1971.3%53.7%
2017-1877.0%56.2%
2016-1779.8%57.2%
2015-1666.0%49.0%
2014-1571.0%52.0%
% 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
64.3%
composite math + reading, all grades
Predicted
72.6%
based on CA schools with similar FRL share
Beats by
-8.3pp
below demographic expectation

What this means: About 64% of students here test proficient in math and reading, compared with the roughly 73% 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 Tamalpais High

Tamalpais High's state test result (64.3% proficient) is higher than 3 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Tamalpais High this school1,47011.8%64.3%
Redwood High
Larkspur
1,7228.2%65.7%
Del Oro High
Loomis
1,63412.9%66.4%
Archie Williams High
San Anselmo
1,14110.3%57.0%
Ponderosa High
Shingle Springs
1,67517.8%60.3%
La Costa Canyon High
Carlsbad
1,77418.3%58.5%
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 Tamalpais High ranks

Among high schools
MeasureThis schoolIn CaliforniaIn Marin County
State test proficiency
ranked highest first
64.3%#135 of 1,052#2 of 8
Math proficiency
ranked highest first
53.4%#137 of 1,056
▼ 30
#3 of 8
▼ 1
Reading proficiency
ranked highest first
70.7%#233 of 1,056
▼ 111
#2 of 8
▼ 1
3-year test score change
ranked biggest drop first
-7.2pp#77 of 1,044#3 of 8
Enrollment
ranked largest first
1,470#580 of 2,093#2 of 15
Students per teacher
ranked fewest first
19.2:1#427 of 1,352#2 of 7
Diversity index
ranked most diverse first
49.5%#688 of 1,351#5 of 7
Free and reduced lunch
ranked highest share first
11.8%#1,540 of 1,575#7 of 9
Enrollment change since 2017-18
ranked steepest decline first
-7.2%#551 of 802N/A
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
1,470
-140 (-9%) vs 2020
+75% since 1990-91, when it was 838
Student : Teacher
19.2:1
was 20.1:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-251,47076.619.2:112% (173)
2023-241,54475.620.4:111% (175)
2022-231,54076.820.0:110% (154)
2020-211,6108020.1:111% (176)
2017-181,58481.519.4:111% (181)
2015-161,4196820.9:19% (122)
2010-111,162N/AN/A9% (103)
2000-019765119.1:13% (29)
1990-918383822.1:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Tamalpais High.

Since 2017-18: students down 7% (1,584 to 1,470); teachers down 6% (81.5 to 76.6).

About Tamalpais High

Tamalpais High is a high school in Mill Valley, California, according to federal school records. Students in grades 9 through 12 attend the school, which enrolls 1,470 students. The average among high schools in California is roughly 838 students; this school is 75% larger than that.

Tamalpais High is run by Tamalpais Union High, whose 5 schools enroll 4,503 students.

Roughly 69% of students at Tamalpais High are White. Other groups make up 12% Hispanic, 10% multiracial, 5% Asian, and 3% Black. The county population is about 68% White, within a few points of the school. Pick two students at random and there is a 49% chance they belong to different racial or ethnic groups; that figure is the school's diversity index.

The school reported 76.6 full-time-equivalent teachers in 2024-25 and a ratio of 19.2:1. That is 1.0 students per teacher above the 18.2:1 average for high schools in California. Free or reduced-price lunch eligibility is 12%. The average for public schools in Marin County is 35%.

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

Tamalpais High's actual average proficiency rate on state tests (64.3%) and its predicted rate (72.6%) put it outside the top and bottom 10% of California schools.

According to the American Community Survey, in Marin County, the median household income is $149,091, the share of adults with a bachelor's degree or higher is 61%, and roughly 4% of residents are in poverty. Tamalpais High is one of 75 public schools in the county.

The shortest distance from Tamalpais High to another public school is about 0.4 miles, to Mill Valley Middle. Other public schools within five miles: at least 8. The nearest schools with test data average 76.2%, higher than Tamalpais High's 64.3%.

The school's federal locale classification is Suburb: Large.

The school enrolled 1,470 students in 2024-25, 140 fewer than the 1,610 it had in 2020-21.

Questions about enrollment questions, class placement, and PTA news can be posted here. Questions from prospective families are welcome too.

Marin County at a glance

View full county profile
Population
257,969
Census ACS
Median income
$149,091
Household, ACS
Bachelor's+
61%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
75
29,867 students

Quick facts

School name
Tamalpais High
District
Tamalpais Union High
Address
700 Miller Ave., Mill Valley, CA 94941
Phone
(415) 380-3510
County
Marin County
Level
High
Grade range
09–12
Total enrollment
1,470
Teachers (FTE)
77
Student–teacher ratio
19.2:1
Free and reduced lunch
173 (12%)
Locale
21-Suburb: Large
NCES ID
063879006526
Charter school
No
Virtual school
No

Related schools

Other schools in Tamalpais Union High
Other schools in Mill Valley
Nearby schools

Frequently asked questions

About Tamalpais High
How many students attend Tamalpais High?
Tamalpais High enrolls approximately 1,470 students in grades 09-12.
Is Tamalpais High an elementary, middle, or high school?
Tamalpais High is a high school covering grades 09-12.
How many teachers does Tamalpais High have?
Tamalpais High employs 77 FTE teachers, for a student-to-teacher ratio of 19.2:1.
What is the student diversity at Tamalpais High?
Student demographics at Tamalpais High are roughly 69% White, 12% Hispanic, 3% Black, 5% Asian, 10% Two or more.
What district is Tamalpais High in?
Tamalpais High is part of Tamalpais Union High.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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