Mills High
🇺🇸 Official data · 2025Millbrae, California 94030 · San Mateo Union High
#75 of 1,343 high schools in California
#2488 of 16,910 nationally
About Mills High
Mills High is a public high located in Millbrae, in the San Mateo Union High school district of California, United States. It caters for Grades 9–12. In 2025 it enrolled 1,115 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 73.4 out of 100, placing it in the top 25% of high schools in United States and 75th of 1,343 ranked high schools in California. Its strongest component is community advantage (fewer free/reduced-price lunch) (91th percentile), and its weakest is students per teacher (15th percentile).
Other published figures: enrollment 1,115.
There are 5 schools in Millbrae; Mills High ranks 3rd of 5 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)66%
- Reading proficiency (30%)75%
- Community advantage (fewer free/reduced-price lunch) (25%)20.3%
- Students per teacher (15%)20.6
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Mills High by the official sources.
- Enrollment
- 1,115
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 20.3%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 20.6
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 75%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 66%
- Share of tested students proficient or above (all students, all grades).
Free academic assessment
Is your child on grade level in reading and math?
Success Tutoring offers personalised English and math tutoring from Kindergarten to Grade 12. Start with a free online assessment and a clear plan for the year ahead.
- Personalised learning plan mapped to the Australian Curriculum
- English & Maths from Kindergarten to Year 12
- Flexible memberships, no lock-in contracts
- Centres across NSW, VIC, QLD, WA, SA and ACT
Schools near Mills High
Closest schools by straight-line distance, with their Success Index (US).
Spring Valley Elementary
Millbrae · Public elementary · Grades K–5
375 students · 349 m away
Franklin Elementary
Burlingame · Public elementary · Grades K–5
357 students · 677 m away
Burlingame Intermediate
Burlingame · Public middle · Grades 6–8
1,115 students · 798 m away
Taylor Middle
Millbrae · Public middle · Grades 6–8
756 students · 1.0 km away
Lincoln Elementary
Burlingame · Public elementary · Grades K–5
415 students · 1.3 km away
Green Hills Elementary
Millbrae · Public elementary · Grades K–5
338 students · 1.8 km away
Hoover Elementary
Burlingame · Public elementary · Grades K–5
227 students · 2.1 km away
Lomita Park Elementary
San Bruno · Public elementary · Grades K–5
277 students · 2.2 km away
Capuchino High
San Bruno · Public high · Grades 9–12
1,061 students · 2.2 km away
Roosevelt Elementary
Burlingame · Public elementary · Grades K–5
311 students · 2.5 km away
Similar schools
Public high schools in California with a comparable Enrollment.
Albany High
Albany · Public high · Grades 9–12
1,122 students
Orosi High
Orosi · Public high · Grades 9–12
1,108 students
Augustus Hawkins High
Los Angeles · Public high · Grades 9–12
1,122 students
Mountain View High
El Monte · Public high · Grades 9–12
1,123 students
South El Monte High
South El Monte · Public high · Grades 9–12
1,125 students
Ramon C. Cortines School of Visual and Performing Arts
Los Angeles · Public high · Grades 9–12
1,102 students
Frequently asked questions
Is Mills High a good school?
Mills High has a Success Index (US) of 73.4 out of 100 (Top 25% of high schools in United States) and ranks #75 of 1,343 in California. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Mills High rank in California?
Mills High ranks #75 of 1,343 high schools in California and #2488 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend Mills High?
Mills High had 1,115 students in 2025.
Is Mills High a elementary school or a high school?
Mills High is classified as a high covering Grades 9–12. It is a public school.
What other schools are near Mills High?
There are 10 schools within 15 km of Mills High; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.