- Enrollment
- 1,722
- Students per teacher
- 18.9:1
- Resource Index
- 44/100
High school (grades 9-12) · Mill Valley, CA
Tamalpais High
Federal NCES profile for Tamalpais High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 42/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 063879006526
👥 S:T ratio 23
🌟 Gifted program 30
🎓 Counselors 58
📋 Attendance 59
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Tamalpais High earns 42/100 on the Resource Investment Index, with class sizes smaller than 71% of California schools.
- #3 of 7
- public schools in Mill Valley · Resource Index
- 42
- Resource Index · Typical
- 19.3:1
- small classes for California
- 10.0%
- free-lunch eligible
Tamalpais High has class sizes smaller than 71% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Tamalpais High ranks #3 of 7 public schools in Mill Valley, CA.
School address
District: Tamalpais Union High · California
NCES ID 063879006526 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+4 students YoY
Tamalpais High held near 1,544 students from 2022-23 to 2023-24 (+4 headcount).
Teacher FTE lost 76.8 → 75.5 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+4 students YoY 063879006526 · Mill Valley, CA High · MID · TRAD
1,470 enr · 19.3:1 · 10.0% lunch · RII 42
Nearest enrollment peer: Redwood High (1,722 students)
Tamalpais High held near 1,544 students from 2022-23 to 2023-24 (+4 headcount). Teacher FTE lost 76.8 → 75.5 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
Tamalpais High in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Redwood High
Redwood High
1,722 students
- This school
Tamalpais High
1,470 students
- Archie William
Archie Williams High
1,141 students
- Tamiscal High 124
Tamiscal High (Alternative)
124 students
- San Andreas Hi 46
San Andreas High (Continuation)
46 students
What this shows Tamalpais High reports 1,470 students on the CCD universe file.
How Tamalpais High compares
Tamalpais High held steady on CCD headcount: ratios and free-lunch share vs California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 19.3:1 | ▼ 10% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 10.0% | ▼ 82% | 55.5% | 51.7% |
| Enrollment | 1,470 | top 7% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
19.3:1
Leaner classes than 19% of US schools, heavier class loads than most.
1,470
Bigger than 96% of US schools by enrollment, a large campus nationally.
Equity indicators methodology
Economic need
10.0%
free-lunch eligible
- 82% below the California average of 55.5%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
19.3:1
students per teacher
- 10% below state mean
Top 29% in California - lower ratio than 71% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
16.6%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$22,335
per pupil, district-wide
- above California avg of $18,665
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors7.0 FTE
Per 210 students, the combined health-and-guidance staffing load for this school.
Discipline context
1
in-school suspensions + 7 out-of-school
Suspension rate: 0.1 per 100 students. Combined in-school and out-of-school rate: 0.5 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 69.1%
Hispanic or Latino 11.9%
Two or More 10.1%
Asian 5.2%
African American 3.3%
Native Hawaiian / Pacific Islander 0.3%
American Indian / Alaska Native 0.2%
Largest group: White at 69.1% of enrollment.
Student-body diversity index 49.4/100
Simpson diversity index - at 49.4, Tamalpais High is more mixed than the California school average of 46.0.
Programs
AP courses offered 18
District finance for Tamalpais Union High reports $22,335 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Tamalpais High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Redwood High | Similar size | Similar economic need | Similar S:T ratio |
| Archie Williams High | Similar size | Similar economic need | Similar S:T ratio |
| Tamiscal High (Alternative) | Smaller | Similar economic need | Lower S:T ratio |
| San Andreas High (Continuation) | Smaller | Higher economic need | Lower S:T ratio |
Comparisons are relative to Tamalpais High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,141
- Students per teacher
- 18.1:1
- Resource Index
- 40/100
- Enrollment
- 124
- Students per teacher
- 12.4:1
- Resource Index
- 61/100
- Enrollment
- 46
- Students per teacher
- 9.2:1
- Resource Index
- 61/100
Nationwide high schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~1,470 students)
Frequently asked questions about Tamalpais High
How many students attend Tamalpais High?
Tamalpais High has 1,470 students enrolled. It is a high school in Mill Valley, CA. CCD year-over-year: 1,540 (2022-23) → 1,544 (2023-24), nearly flat (+4).
What is the student-teacher ratio at Tamalpais High?
The student-teacher ratio at Tamalpais High is 19.3:1, which is 10% lower than the California average of 21.5:1 and 23% higher than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Tamalpais High?
10.0% of students at Tamalpais High are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Tamalpais High?
The largest demographic group at Tamalpais High is White at 69.1% of enrollment, in Mill Valley, CA.
What is the Resource Investment Index for Tamalpais High?
Tamalpais High has a Resource Investment Index of 42/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Tamalpais High rank among public schools in Mill Valley?
By Resource Investment Index, Tamalpais High ranks #3 of 7 public schools in Mill Valley, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Mill Valley on the city page.
What other schools are in Tamalpais Union High?
Besides Tamalpais High, Tamalpais Union High also operates Redwood High (1,722 students), Archie Williams High (1,141 students), and Tamiscal High (Alternative) (124 students). See the Tamalpais Union High district page for the complete list.