How does Old Mill Elementary compare to other elementary schools in Mill Valley?

Old Mill Elementary has a SchoolScope composite score of 72.5/100, placing it at the 97th percentile statewide. 54% of students exceed standard, with a total of 500 students tested across grades and subjects.

What percentage of students exceed standards at Old Mill Elementary?

53.7% of students at Old Mill Elementary exceed the state standard on CAASPP assessments, while 85.5% meet or exceed it. The gap between these two numbers reveals whether the school pushes students beyond basic proficiency.

Is Old Mill Elementary improving or declining?

Old Mill Elementary's proficiency rate increases by 5.0 percentage points from grade 3 to grade 5, suggesting the school is adding value over time.

What is the chronic absenteeism rate at Old Mill Elementary?

6.5% of students at Old Mill Elementary are chronically absent (missing 10% or more of school days). This metric reflects school culture and family engagement, and is weighted at 15% in our composite score.

Old Mill Elementary

Mill Valley Elementary Mill Valley Marin County 94941

Composite Score

out of 100

State Percentile

of elementary schools

State Rank

500 students tested

School overview

Enrollment

251 students

Student-Teacher Ratio

21:1

Free/Reduced Lunch

Teachers

12 full-time

Student demographics

Hispanic 6.0%

White 71.7%

Asian 0.8%

Other 21.5%

Performance breakdown

Performance breakdown for Old Mill Elementary
Category	Percentage
Exceeded Standard	53.7%
Met Standard	31.8%
Below Standard	14.5%

Exceeded

53.7%

Met

31.8%

Below

14.5%

What other rankings don't show you

Most rating sites report "85% proficient" for Old Mill Elementary and stop there. Here's what that number hides:

53.7% of students exceeded standard while 31.8% merely met it. That exceeded rate is 32.8 points above the state average of 21.0%. That's 3.3 points below the Mill Valley Elementary district average of 57.0%. Compared to the 5 nearby schools within ~3 miles, this exceeded rate is 6.8 points higher (vs 47.0% average). The gap between "met" and "exceeded" is the difference between a school that clears the bar and one that raises it.

Students here improve by 5.0 percentage points from grade 3 to grade 5, suggesting the school is adding value beyond what students arrive with.

Chronic absenteeism is 6.5%, better than the state average of 18.7%.