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Alumni: what's one memory from Archie Williams High that still sticks with you?
Community prompt from u/allk12. Replies below.
Enrollment
1,141
High
DISTRICT 901 · STATE 838
SCHOOL COMMUNITY·TAMALPAIS UNION HIGH·NCES 063879006525
Archie Williams High
1327 Sir Francis Drake Blvd., San Anselmo, CA 94960 · (415) 453-8770 · Marin County
GRADES 09–12HIGH21-SUBURBREGULAR SCHOOL1,141 STUDENTS
B-
allk12 Grade
Scored higher than 45% of California public high schools
- A-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.
- CThree-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
Student : Teacher
18.0:1
63 FTE teachers
DISTRICT 15.1:1 · STATE 18.2:1
Free / Reduced Lunch
10%
118 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
| Grade | Students | Share |
|---|---|---|
| Grade 9 | 285 | 25% |
| Grade 10 | 259 | 23% |
| Grade 11 | 309 | 27% |
| Grade 12 | 288 | 25% |
Student demographics
42%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 49% · STATE 62% · US 70%
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
Test scores
CAASPP 2024-25 . % met or exceeded standardEnglish Language Arts
67.5%
CA avg 49.1% . -10.5pp since 2014
Math
55.1%
CA avg 37.7% . -8.9pp since 2014
What this means: On the CAASPP, California's statewide test, about 68 of every 100 students at this school read and write at grade level and about 55 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 10 points since 2014, while math scores are down about 9 points.
Performance levels, 2024-25
| Subject | Standard Exceeded | Standard Met | Standard Nearly Met | Standard Not Met |
|---|---|---|---|---|
| English Language Arts | 38.3% | 29.2% | 15.0% | 17.5% |
| Math | 26.4% | 28.6% | 23.6% | 21.4% |
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 year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 67.5% | 55.1% |
| 2023-24 | 62.6% | 42.6% |
| 2022-23 | 76.3% | 52.7% |
| 2021-22 | 68.8% | 54.4% |
| 2020-21 | 77.4% | 58.8% |
| 2018-19 | 76.2% | 62.8% |
| 2017-18 | 65.6% | 48.0% |
| 2016-17 | 67.1% | 61.6% |
| 2015-16 | 80.0% | 56.0% |
| 2014-15 | 78.0% | 64.0% |
% 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 · methodologyTier
UNDERPERFORMING
Bottom 10% of CA schools after controlling for student poverty
Actual proficiency
57.0%
composite math + reading, all grades
Predicted
73.5%
based on CA schools with similar FRL share
Beats by
-16.5pp
below demographic expectation
What this means: About 57% of students here test proficient in math and reading, below the roughly 73% 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 Archie Williams High
Archie Williams High's state test result (57.0% proficient) is higher than 0 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Archie Williams High this school | 1,141 | 10.3% | 57.0% |
| Del Oro High Loomis | 1,634 | 12.9% | 66.4% |
| Tamalpais High Mill Valley | 1,470 | 11.8% | 64.3% |
| Redwood High Larkspur | 1,722 | 8.2% | 65.7% |
| Laguna Beach High Laguna Beach | 815 | 17.1% | 73.3% |
| Carmel High Carmel | 780 | 15.1% | 68.2% |
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 Archie Williams High ranks
Among high schools| Measure | This school | In California | In Marin County |
|---|---|---|---|
| State test proficiency ranked highest first | 57.0% | #222 of 1,052 | #4 of 8 |
| Math proficiency ranked highest first | 55.1% | #122 of 1,056 ▲ 101 | #2 of 8 ▲ 1 |
| Reading proficiency ranked highest first | 67.5% | #298 of 1,056 ▲ 82 | #4 of 8 ▲ 2 |
| 3-year test score change ranked biggest drop first | -0.3pp | #367 of 1,044 | #6 of 8 |
| Enrollment ranked largest first | 1,141 | #713 of 2,093 | #7 of 15 |
| Students per teacher ranked fewest first | 18.0:1 | #289 of 1,352 | #1 of 7 |
| Diversity index ranked most diverse first | 42.0% | #802 of 1,351 | #6 of 7 |
| Free and reduced lunch ranked highest share first | 10.3% | #1,548 of 1,575 | #8 of 9 |
| Enrollment change since 2017-18 ranked steepest decline first | -5.2% | #630 of 802 | N/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 2024-25Enrollment
1,141
-214 (-16%) vs 2020
+58% since 1990-91, when it was 720
Student : Teacher
18.0:1
was 19.6:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 1,141 | 63.4 | 18.0:1 | 10% (118) |
| 2023-24 | 1,181 | 63.8 | 18.5:1 | 11% (129) |
| 2022-23 | 1,224 | 63.9 | 19.1:1 | 11% (136) |
| 2020-21 | 1,355 | 69 | 19.6:1 | 12% (165) |
| 2017-18 | 1,203 | 66 | 18.2:1 | 12% (146) |
| 2015-16 | 1,077 | 57 | 18.9:1 | 7% (73) |
| 2010-11 | 1,023 | N/A | N/A | 8% (79) |
| 2000-01 | 1,028 | 55 | 18.7:1 | 1% (11) |
| 1990-91 | 720 | 35 | 20.6:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Archie Williams High.
Since 2017-18: students down 5% (1,203 to 1,141); teachers down 4% (66 to 63.4).
About Archie Williams High
Archie Williams High is a high school with a street address in San Anselmo, California. It reported 1,141 students in grades 9 through 12 in 2024-25. By comparison, high schools in California enroll about 838 students on average.
Across its 5 schools, Tamalpais Union High enrolls 4,503 students. Archie Williams High is one of those schools.
The largest group at Archie Williams High is White students, at 74%. Smaller groups are 15% Hispanic and 8% multiracial. The diversity index for Archie Williams High is 42%. For US public schools as a whole it is 70%.
The student-to-teacher ratio at Archie Williams High is 18.0:1, based on 63.4 full-time-equivalent teachers. The average ratio among high schools in California is similar, at 18.2:1. Lunch program data show 10% of students are eligible for free or reduced-price meals. By comparison, the figure for public schools in Marin County is 35%.
On the allk12 Grade, Archie Williams High lands at B-, ahead of 45% of California public high schools.
Archie Williams High trails its predicted average proficiency rate across its state test results by 16.5 points (57.0% versus 73.5%), a bottom-10% result in California on BeatsExpectations.
Five-year Census Bureau estimates for Marin County show that median household income comes to about $149,091, roughly 61% of adults have a four-year degree or more, and about 4% of residents live below the federal poverty line. Marin County counts 75 public schools with about 29,867 students.
The closest school to Archie Williams High is Brookside Elementary, located about 0.5 miles away. There are at least 8 more public schools inside five miles. Ranking the closest schools with test data puts Archie Williams High at 8th of 8.
In the federal locale system, Archie Williams High is coded Suburb: Large, for schools in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.
Enrollment was 1,141 in 2024-25. In 2020-21, it was 1,355. Its ratio of students to teachers was 19.6:1 in 2020-21, and 18.0:1 in 2024-25.
The discussion board for Archie Williams High is open to topics like pickup and drop-off, after-school programs, and teacher feedback. Parents, students, alumni, and staff are welcome to post.
Marin County at a glance
View full county profilePopulation
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
Related schools
Other schools in Tamalpais Union High
- Redwood HighHigh · 1,722 students
- Tamalpais HighHigh · 1,470 students
- Tamiscal High (Alternative)High · 124 students
- San Andreas High (Continuation)High · 46 students
Other schools in San Anselmo
- Wade Thomas ElementaryElementary · 292 students
- Brookside ElementaryElementary · 278 students
- Hidden Valley ElementaryElementary · 274 students
Nearby schools
- Brookside Elementary0.5 mi · 278
- Wade Thomas Elementary0.9 mi · 292
- Ross Valley Charter1.0 mi · 198
- Sun Valley Elementary1.2 mi · 523
- Manor Elementary1.5 mi · 234
- Terra Linda High1.5 mi · 1,248
Frequently asked questions
About Archie Williams HighHow many students attend Archie Williams High?
Archie Williams High enrolls approximately 1,141 students in grades 09-12.
What grades does Archie Williams High serve?
Archie Williams High serves grades 09-12.
What is the student-teacher ratio at Archie Williams High?
The student-to-teacher ratio at Archie Williams High is approximately 18.0:1 (63 FTE teachers).
What is the student diversity at Archie Williams High?
Student demographics at Archie Williams High are roughly 74% White, 15% Hispanic, 1% Black, 2% Asian, 8% Two or more.
What district is Archie Williams High in?
Archie Williams High is part of Tamalpais Union High.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.