Mills High School is a public high school in Millbrae, California, one of eight in the San Mateo Union High School District. Mills was established in 1958. Mills High School has been named a California Distinguished School three times.
Serving 1,115 students in grades 9-12, Mills High School ranks in the top 10% of all schools in California for overall test scores (math proficiency is top 20%, and reading proficiency is top 20%).
The percentage of students achieving proficiency in math is 57% (which is higher than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 80-84% (which is higher than the California state average of 47%).
The student-teacher ratio of 21:1 is equal to the California state level of 21:1.
Minority enrollment is 89% of the student body (majority Asian), which is higher than the California state average of 80% (majority Hispanic and Asian).
Quick Facts (2026)
- Grades: 9-12
- Enrollment: 1,115 students
- Student-Teacher Ratio: 21:1
- Minority Enrollment: 89%
- Graduation Rate: 94% (Top 30% in CA)
- Overall Testing Rank: Top 10%
- Math Proficiency: 57% (Top 20%)
- Reading Proficiency: 80-84% (Top 5%)
- Science Proficiency: 75-79% (Top 1%)
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
Top Rankings
Mills High School ranks among the top 20% of public schools in California for:
Category
Attribute
Overall Rank
Math Proficiency
Reading/Language Arts Proficiency
Science Proficiency
School Overview
Mills High School's student population of 1,115 students has declined by 5% over five school years.
The teacher population of 54 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
Total Students
1,115 students
Total Classroom Teachers
54 teachers
Year Founded
1958
Colors
Gold, Scarlet
School Calendar
School Rankings
Mills High School ranks within the top 10% of all 9,523 schools in California (based off of combined math and reading proficiency testing data).
The diversity score of Mills High School is 0.60, which is less than the diversity score at state average of 0.63. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#813 out of 9523 schools
(Top 10%)
(Top 10%)
Math Test Scores (% Proficient)
57%
34%
Reading/Language Arts Test Scores (% Proficient)
80-84%
47%
Science Test Scores (% Proficient)
75-79%
29%
Student-Teacher Ratio
21:1
21:1
American Indian
n/a
1%
Asian
59%
12%
Hispanic
20%
56%
Black
n/a
5%
White
11%
20%
Hawaiian
1%
n/a
Two or more races
9%
6%
All Ethnic Groups
Graduation Rate
94%
87%
Eligible for Free Lunch
19%
54%
Eligible for Reduced Lunch
1%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CA Dept. of Education
School Notes
- School Mascot: Vikings
Frequently Asked Questions
What is Mills High School's ranking?
Mills High School is ranked #813 out of 9,523 schools, which ranks it among the top 10% of public schools in California.
What schools are Mills High School often compared to?
Mills High Schoolis often viewed alongside schools like Burlingame High School, Capuchino High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
57% of students have achieved math proficiency (compared to the 34% CA state average), while 80-84% of students have achieved reading proficiency (compared to the 47% CA state average).
What is the graduation rate of Mills High School?
The graduation rate of Mills High School is 94%, which is higher than the California state average of 87%.
How many students attend Mills High School?
1,115 students attend Mills High School.
What is the racial composition of the student body?
59% of Mills High School students are Asian, 20% of students are Hispanic, 11% of students are White, 9% of students are Two or more races, and 1% of students are Hawaiian.
What is the student-teacher ratio of Mills High School?
Mills High School has a student ration of 21:1, which is equal to the California state average of 21:1.
What grades does Mills High School offer ?
Mills High School offers enrollment in grades 9-12
What school district is Mills High School part of?
Mills High School is part of San Mateo Union High School District.
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