NCES CCD 2024-25 7 schools CA

Best-Resourced Schools in Mill Valley, CA

Compiled from official source data by PlainSchools. · Updated July 2026

7 public K-12 schools in Mill Valley from NCES Common Core of Data: enrollment, grade span, demographics, and Civil Rights Data Collection statistics for every active campus.

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Schools

3,779

Students

41.1/100

Avg Resource Index

20.4:1

Avg Student-Teacher Ratio

National city placement

One campus shapes the city average

According to NCES CCD 2024-25, Mill Valley has more public-school enrollment than 41% of the 4,487 US cities in this directory. Tamalpais High enrolls 38.9% of Mill Valley's public-school students. That is enough concentration for one institution to pull the citywide enrollment, staffing, and Resource Index averages toward its own profile. The smaller campuses below should therefore be compared directly rather than inferred from the headline mean; their grade configurations and program footprints can be materially different even inside the same district.

The school portfolio is elementary-weighted

5 of Mill Valley's 7 listed schools are elementary campuses. That composition means citywide enrollment and staffing averages are influenced more by early-grade operating patterns than by the city's 1 middle and 1 high-school records. Families comparing later grades should rely on those individual rows rather than the all-school mean.

The composite and staffing measures point in different directions

Mill Valley's average Resource Investment Index sits at the 51st percentile, while its teacher-staffing measure sits at the 14th percentile. The 37-point percentile gap is a reminder that the index is not a class-size score: counselors, gifted-program reporting, and attendance also affect it. Compare those components directly when two schools have similar index totals; the same headline score can arise from a different mix of reported resources.

City enrollment: Top 59%
School count: Top 65%
Resource Index average: 51st percentile
Teacher staffing: 14th percentile

Tamalpais High accounts for 38.9% of all Mill Valley public-school enrollment

That dominant concentration means Mill Valley-wide averages can mask substantial variation outside the largest entity. Grade level: High. The share measures enrollment concentration only; it does not establish how districts allocate programs, capital, or staff. Enrollment-weighted aggregates give this entity more weight than any smaller peer, while an unweighted entity average treats every record equally.

Source: NCES Common Core of Data NCES Common Core of Data Accessed 2026-07-30

Mill Valley school enrollment varies 5.7× across entities

Mill Valley school enrollment ranges from 259 students (lowest) to 1,470 students (highest), a spread of 1,211 students. That relatively narrow ratio reflects an unusually homogeneous school portfolio for a city this size. Per-school staffing and program breadth can differ sharply at opposite ends of that enrollment range, so the city average should not be treated as a typical campus.

Source: NCES Common Core of Data NCES Common Core of Data Accessed 2026-07-30

Mill Valley student-teacher ratio is 20.4:1 — high (typically associated with larger urban scale or staffing constraints that have widened the headcount gap)

student-teacher ratio is the simplest comparative metric but it does not capture the full picture: the ratio counts FTE classroom teachers against total enrollment, push-in specialists, English-language aides, special-education co-teachers, and counselors are not included in most reporting Higher values may reflect larger urban scale or recent resource constraints that have widened the gap.

Source: NCES Common Core of Data, Public School Universe NCES Common Core of Data, Public School Universe Accessed 2026-07-30

#	School	Score	Enrollment	Level	District
1.	Mill Valley Middle	47	721	middle	Mill Valley Elementary
2.	Old Mill Elementary	45	261	elementary	Mill Valley Elementary
3.	Tamalpais High	42	1,470	high	Tamalpais Union High
4.	Strawberry Point Elementary	42	259	elementary	Mill Valley Elementary
5.	Tamalpais Valley Elementary	39	368	elementary	Mill Valley Elementary
6.	Edna Maguire Elementary	37	399	elementary	Mill Valley Elementary
7.	Park Elementary	36	301	elementary	Mill Valley Elementary

Most racially and ethnically mixed schools in Mill Valley

Ranked by the Simpson student-body diversity index (0-100) from NCES race and ethnicity data, where higher means a more evenly mixed student body. It measures mix, not quality.

What do families ask about schools in Mill Valley?

Which Mill Valley school has the highest Resource Investment Index? ▼

Mill Valley Middle has the highest Resource Investment Index among the Mill Valley schools in this federal-data comparison at 47/100. The index summarizes reported staffing, counseling, gifted-program, and attendance inputs; it is not an academic rating.

How many schools are in Mill Valley, CA? ▼

Mill Valley has 7 public schools with a total enrollment of 3,779 students. Average student-teacher ratio: 20.4:1.

Other Cities in California

Side-by-side: Compare any two schools or districts in California →

Data from NCES Common Core of Data (CCD) 2024-25 and Civil Rights Data Collection (CRDC) 2021-22. The Resource Investment Index uses reported student-teacher ratio, counselor access, gifted programs, and attendance; it is not an academic rating. Cities must include at least five schools to be listed. This public-data comparison is for informational purposes: verify current enrollment, attendance boundaries, and programs with the school district before acting. See the guide to understanding NCES data.