Old Mill Elementary: High scores, real growth, strong attendance. We looked for a catch — we didn't find one.
Old Mill posts 53.6% exceeding the standard — versus 21.3% statewide — with climate numbers better than most. That doesn't make it perfect. It makes it worth a visit to find what numbers can't measure.
| Scope | % Exceeded | % Met+ | Growth | Absence | Suspension | |
|---|---|---|---|---|---|---|
| This school | 80 | 54% | 85% | +5.0 | 7.7% | 2.9% |
| CA average · Elementary School | 45 | 21% | 43% | -2.9 | 17.9% | 1.6% |
Old Mill Elementary scores 80 of 100 on SchoolScope's Scope Score — the 98th percentile of 5,744 California elementary schools (CDE CAASPP 2025).
Measures test performance, attendance, and climate — not arts, community, or your kid. How we score →
⭐ High Ceiling — Ask what happens for a kid who shows up behind — a high ceiling for the top can sit right next to thin support at the bottom, and the score alone won't show you which.
Most rating sites would stop at “85% proficient” and call it done. Old Mill deserves a closer read. It sits at the 98th percentile of 5,744 California elementary schools — but the ranking is the least interesting thing on this page.
The headline number: 53.6% of students scored in the top band on the state test. The California average is 21.3%.
The seven-year arc
Has held the 98th-percentile line every tested year since 2019.
This school hasn't fully recovered from the pandemic: 85% meet the standard today, versus 90% in 2019 — a gap worth asking about on a visit.
| Grade | 2019 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Grade 3 | 86% | 88% | 78% | 80% | 83% |
| Grade 4 | 96% | 88% | 90% | 79% | 91% |
| Grade 5 | 88% | 93% | 87% | 100% | 93% |
| Grade | 2019 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Grade 3 | 86% | 93% | 81% | 76% | 79% |
| Grade 4 | 96% | 88% | 90% | 79% | 87% |
| Grade 5 | 85% | 74% | 84% | 97% | 80% |
The story this school is actually telling
The school, grade by grade
ELA · CAASPP 2024–25Different students, same year — each bar is one grade's proficiency mix.
The honest read: the share exceeding falls 3.6pp across grades; the floor rises 9.6pp. The state average rises 4.5pp over the same span. A school visit and conversation with teachers will tell you more than this number.
The 5 things our score weighs
Ask what the school is working on next. Strong numbers tell you where a school is, not where it's going.
- Ask how teachers track each child's growth over the year, not just where the class lands on test day.
- Ask whether the tour can step into a working classroom — watch how the teacher handles a student who's stuck.
- Ask to tour while school's in session, and notice how hallways and transitions feel — culture shows up between classes, not just in them.
- Ask how the school communicates with families when a child starts to struggle.
- Ask what a typical day looks like for a new student in the first few weeks.
How every group of students does here
At Old Mill Elementary in Mill Valley, 90.3% of white students met or exceeded the ELA standard in 2025, compared to 86.2% district-wide and 61.8% statewide. Old Mill Elementary outperforms its district average for white students by 4.2 percentage points in ELA. Other subgroups: White students (83.7% Math proficient). Data source: California Department of Education, CAASPP 2024-25. 93 students tested.
7 of 11 student groups here are too small to report — a privacy protection, not a gap.
Change in proficiency from the lowest tested grade — which groups gain ground the longer they stay. Groups with fewer than 10 tested students per grade are not shown.
Showing up, and staying in class
TK/K students miss school at roughly twice the rate of Grades 4–6 students (8.9% vs 3.5%). Chronic absence here concentrates in the earliest grades — worth asking how the school works with new families on attendance.
Where the path goes
The path below follows attendance boundaries — scores shown for each next step.
Feeder patterns derived from NCES attendance boundary data. Boundaries are approximate and may have changed — verify with your school district for current assignments.
The people teaching here
Pay is set by the district, not the school.
What gets spent here
$436 per student arrives as federal Title funding — a measure of concentrated need, not school quality.
The district's current expense of education per student, from CDE's annual SACS filing — the freshest district spending figure the state publishes.
District-level, from the district's own SACS general-ledger filing — school-by-school breakdowns aren't published by the state.
Source: NCES F-33 · Full district breakdown →
The neighborhood it serves
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2024) · ZIP-level
At 261 students, this school is much smaller than the typical California elementary school (≈480).
On the state's science test (CAST), 80% met or exceeded the standard — science is tested in grades 5 and 8 but never enters the Scope Score.
Frequently asked questions
Is Old Mill Elementary a good elementary school?
What are Old Mill Elementary's CAASPP test scores?
How does Old Mill Elementary rank in California?
Is Old Mill Elementary getting better or worse?
What is the attendance and school culture like at Old Mill Elementary?
How does Old Mill Elementary compare to other schools in Mill Valley?
How does Old Mill Elementary serve low-income and underrepresented students?
Your other options
Nearby Elementary Schools
3 within ~3 mi · avg 81
Nearby Middle Schools
2 within ~3 mi · avg 71
Private alternatives nearby
Private schools within ~10 miles. These schools do not participate in state testing and cannot be scored or ranked.
Every number on this page
Score factors, grade-level breakdowns, subgroup proficiency, and peer comparisons.
| ELA | Tested | EXC | MET | NEAR | NOT | MET+ | +/CA |
|---|---|---|---|---|---|---|---|
| Grade 3 | 41 | 56% | 27% | 10% | 7% | 83% | +40 |
| Grade 4 | 45 | 53% | 38% | 7% | 2% | 91% | +46 |
| Grade 5 | 40 | 53% | 40% | 3% | 5% | 93% | +45 |
| Math | Tested | EXC | MET | NEAR | NOT | MET+ | +/CA |
|---|---|---|---|---|---|---|---|
| Grade 3 | 39 | 31% | 49% | 18% | 3% | 79% | +34 |
| Grade 4 | 45 | 67% | 20% | 11% | 2% | 87% | +45 |
| Grade 5 | 40 | 63% | 18% | 18% | 3% | 80% | +45 |
| Science (CAST) | Tested | EXC | MET | NEAR | NOT |
|---|---|---|---|---|---|
| Grade 5/8/11 | 40 | 38% | 43% | 20% | 0% |
CAST is tested in grades 5, 8, and once in high school — not annually. Not part of the Scope Score.
| Subgroup · ELA | Tested | MET+ | vs district | vs CA |
|---|---|---|---|---|
| White | 93 | 90.3% | +4 | +29 |
| School | Dist | Scope | EXC | MET+ | Growth | Susp |
|---|---|---|---|---|---|---|
| Old Mill Elementary ← | — | 80 | 53.6% | 85.5% | +5.0 | 2.9% |
| Tamalpais Valley Elementary | 2.6 mi | 83 | 60.4% | 85.6% | +2.5 | 1.1% |
| Park Elementary | 0.8 mi | 83 | 55.0% | 86.0% | +11.1 | 0.8% |
| Neil Cummins Elementary | 2.3 mi | 77 | 53.6% | 78.8% | −12.4 | 0.9% |
| California average | — | 45 | 21.3% | 42.7% | −2.9 | 1.6% |
| Year | Scope | Pctile | Rank | Exc | Met+ | Absent | Susp | Growth |
|---|---|---|---|---|---|---|---|---|
| 2019 | 85 | 99 | #66 | 64.0% | 89.6% | 2.3% | 0.3% | +0.5pp |
| 2022 | 72 | 96 | #246 | 56.0% | 87.2% | 12.1% | 0.7% | -6.3pp |
| 2023 | 84 | 99 | #76 | 63.3% | 85.1% | 18.0% | 0.4% | +5.8pp |
| 2024 | 85 | 99 | #66 | 59.7% | 85.5% | 6.9% | 2.6% | +20.4pp |
| 2025 | 80 | 98 | #135 | 53.6% | 85.5% | 7.7% | 2.9% | +5.0pp |
| Group | 2019 | 2025 | Δ |
|---|---|---|---|
| Female | 3.1% | 6.9% | +3.8pp |
| Male | 0.8% | 6.1% | +5.3pp |
| Two or More Races | 0.0% | 0.0% | +0.0pp |
| Students with Disabilities | 0.0% | 4.8% | +4.8pp |
| All Students | 2.0% | 6.5% | +4.5pp |
| Filipino | — | 16.7% | — |
| Hispanic/Latino | — | 0.0% | — |
| Socioeconomically Disadvantaged | — | 33.3% | — |
SchoolScope scores and verdicts are our interpretation of public California Department of Education data — independent analysis, not an official rating. How we analyze · Request a correction