CAHighCalendar available · 10 events · Auto-updating
Mills High — School Profile & District Info
High|Millbrae, California|San Mateo Union High
Millbrae, CA 94030
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School Profile
Grades
9–12
Enrollment
1,119
Student:Teacher
19.6:1
Locale
Suburban
District
San Mateo Union HighEcon. Disadvantaged
17.1%
Phone
(650)558-2599School Statistics
Academics (SY 2020-21)
Graduation Rate
97%
Programs & Activities (SY 2021-22)
AP Program
18 courses offered
Dual Enrollment
Athletics
26 sports offered
Student-Teacher Ratio: 19.7:1
Near average in CADistrict Finance (FY 2023)
Per-Pupil Spending
$24,541
District-level data
Funding Sources
Federal 2%State 14%Local 84%
Community Context
Median Home Value
$1,116,383
-2.3% YoY
San Francisco, CA metro area · Zillow Feb 2026
Community Need Level
Moderate
CDC/ATSDR Social Vulnerability Index 2022
Enrollment Trend (2014-2025)
1,115
Current enrollment
Stable(-8% 5yr)Frequently Asked Questions about Mills High
Mills High has a total enrollment of 1,119 students and serves grades High. The school is part of the local school district in Millbrae, CA.
Calendar Guides
School profiles: Data from NCES Common Core of Data. Calendar events from district calendar sources, updated automatically.