Enrollment
368
California · 2024-25 NCES data
Elementary school (grades K-5) · Mill Valley, CA
Federal NCES profile for Tamalpais Valley Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 39/100.
The verdict
Tamalpais Valley Elementary earns 39/100 on the Resource Investment Index, with class sizes near the California median.
Tamalpais Valley Elementary has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Tamalpais Valley Elementary ranks #3 of 5 elementary schools in Mill Valley, CA.
NCES ID 062487003716 Verify on NCES CCD record →
Enrollment
368
California · 2024-25 NCES data
Teachers (FTE)
17.0
Federal CCD staff survey
Students per teacher
21.6:1
vs 21.5:1 California avg
+0% vs state
Free-lunch eligible
5.1%
vs 55.5% California avg
-91% vs state
How Tamalpais Valley Elementary compares with California and U.S. medians
Slightly above state median
21.6:1 - 0.1 above the California state median of 21.5:1, indicating larger average class loads than typical schools in the state.
Tamalpais Valley Elementary is a lower-poverty, mid-sized elementary school in Mill Valley, California, enrolling 368 students.
At 21.6:1, its student-teacher ratio sits close to the California median, within a few percentage points of the 21.5:1 state norm, neither notably crowded nor notably small.
Comparatively few students face economic hardship here, 5.1% free-meal eligibility runs 91% below the California average.
With 368 students, its enrollment sits close to the California median campus size.
Its Resource Investment Index lands in the upper third of 9,998 scored California schools.
Against 441 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #176.
Its student body is led by White (73%) and Two or More (14%) (diversity index 43/100).
Counselor availability sits well past the ASCA benchmark, roughly 368 students sharing each counselor, though short of the most stretched campuses.
Attendance holds up well here: only 6.3% of students were chronically absent, below the typical post-pandemic national figure.
The surrounding Mill Valley Elementary spends $20,856 per pupil, 26% above the California average, a better-resourced district than most.
Among Mill Valley's elementary schools, it stands alongside Edna Maguire Elementary (399 students): Tamalpais Valley Elementary is smaller than that campus by headcount and runs heavier classes (21.6:1 vs 19:1).
Mill Valley Elementary also operates Mill Valley Middle (721 students) and Edna Maguire Elementary (399 students) alongside Tamalpais Valley Elementary.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
Tamalpais Valley Elementary on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 21.6:1 | ▲ 0% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 5.1% | ▼ 91% | 55.5% | 51.7% |
| Enrollment | 368 | top 65% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Largest group: White at 73.4% of enrollment.
Simpson diversity index - at 43.3, Tamalpais Valley Elementary is less mixed than the California school average of 46.0.
District-wide per-pupil expenditure for Mill Valley Elementary, which includes Tamalpais Valley Elementary.
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Mill Valley Middle | Larger | Similar economic need | Lower S:T ratio |
| Edna Maguire Elementary | Similar size | Similar economic need | Lower S:T ratio |
| Park Elementary | Similar size | Similar economic need | Higher S:T ratio |
| Old Mill Elementary | Smaller | Similar economic need | Similar S:T ratio |
| Strawberry Point Elementary | Smaller | Similar economic need | Similar S:T ratio |
Comparisons are relative to Tamalpais Valley Elementary's own figures; each column derives from NCES Common Core of Data.
4 comparable elementary schools (grades K-5) serving the same city.
Matched by enrollment size and by staffing ratio across all of California, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Tamalpais Valley Elementary's federal record.
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Tamalpais Valley Elementary has 368 students enrolled. It is an elementary school in Mill Valley, CA.
The student-teacher ratio at Tamalpais Valley Elementary is 21.6:1, which is 0% higher than the California average of 21.5:1 and 38% higher than the national average of 15.7:1.
5.1% of students at Tamalpais Valley Elementary are eligible for free lunch, compared to the California average of 55.5%.
The largest demographic group at Tamalpais Valley Elementary is White at 73.4% of enrollment, in Mill Valley, CA.
Tamalpais Valley Elementary has a Resource Investment Index of 39/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Tamalpais Valley Elementary ranks #3 of 5 elementary 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 elementary schools in Mill Valley on the city page.
Tamalpais Valley Elementary earns 39/100 on the Resource Investment Index, with class sizes near the California median. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
Besides Tamalpais Valley Elementary, Mill Valley Elementary also operates Mill Valley Middle (721 students), Edna Maguire Elementary (399 students), and Park Elementary (301 students). See the Mill Valley Elementary district page for the complete list.
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.
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PlainSchools, “Tamalpais Valley Elementary, Mill Valley CA.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/tamalpais-valley-elementary-ca/
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