Mills High

400 Murchison Dr., Millbrae, CA 94030

ASchola Grade
Grades
9–12
High
Students
1,115
Enrolled 2024–25
Students per teacher
20.5 : 1
Full-time teachers
District
San Mateo Union High
San Mateo County

Schola Grade A · Excellent

Letter grade (A–F) · compared with 1,321 California high schools · How we grade
Test scores77% proficient in math & reading
97thpercentile
Equity60% of low-income students proficient
94thpercentile
Attendance9% chronically absent
94thpercentile
Graduation rate94% graduate in 4 years
52ndpercentile
College readinessAt least 40% take AP, IB or dual-enrollment courses
80thpercentile
Class size20.5 students per teacher
54thpercentile

Percentiles compare this school with other California high schools; the line marks the middle. Data: test scores 2021–22, graduation and absenteeism 2022–23 (U.S. Department of Education, EDFacts); coursework 2023–24 (Civil Rights Data Collection); staffing 2024–25 (NCES).

About Mills High

Mills High is a public high school in Millbrae, California, serving grades 9–12. It is part of San Mateo Union High. The school is located in a large suburb in San Mateo County.

In the 2024–25 school year, 1,115 students were enrolled, with about 20.5 students for every full-time teacher. That ratio is larger than the typical California high school (18.5 students per teacher). Its Schola Grade is A (excellent), compared with 1,321 California high schools.

Grades & enrollment

Students per grade, 2024–25Grades 9–12

Location & nearby schools

400 Murchison Dr.
Millbrae, CA 94030
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School details

Type
Public School · What this means
Level
High
Grades offered
9–12
Enrollment (2024–25)
1,115 students
Students per teacher
20.5 to 1
AP courses offered
20
Charter school
No
Magnet school
No
Locale
Suburb — Large
School district
San Mateo Union High
County
San Mateo County
NCES school ID
063498005924

Schools near Mills High

All 6 schools in Millbrae →

School data comes from the U.S. Department of Education: the National Center for Education Statistics (NCES) Common Core of Data and EDGE school locations (2024–25) and Private School Survey (2023–24), the Civil Rights Data Collection (2023–24), and EDFacts (test results 2021–22; graduation and chronic absenteeism 2022–23), plus other public sources. Please contact the school to confirm enrollment, programs, and other details. How we source data.