Northgate High

425 Castle Rock Rd., Walnut Creek, CA 94598

ASchola Grade
Grades
9–12
High
Students
1,546
Enrolled 2024–25
Students per teacher
23.1 : 1
Full-time teachers
District
Mt. Diablo Unified
Contra Costa County

Schola Grade A · Excellent

Letter grade (A–F) · compared with 1,321 California high schools · How we grade
Test scores72% proficient in math & reading
95thpercentile
Equity64% of low-income students proficient
96thpercentile
Attendance15% chronically absent
84thpercentile
Graduation rate97% graduate in 4 years
75thpercentile
College readinessAt least 42% take AP, IB or dual-enrollment courses
82ndpercentile
Class size23.1 students per teacher
26thpercentile

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 Northgate High

Northgate High is a public high school in Walnut Creek, California, serving grades 9–12. It is part of Mt. Diablo Unified. The school is located in a small city in Contra Costa County.

In the 2024–25 school year, 1,546 students were enrolled, with about 23.1 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

425 Castle Rock Rd.
Walnut Creek, CA 94598
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School details

Type
Public School · What this means
Level
High
Grades offered
9–12
Enrollment (2024–25)
1,546 students
Students per teacher
23.1 to 1
AP courses offered
19
Charter school
No
Magnet school
No
Virtual learning
Offers virtual courses
Locale
City — Small
School district
Mt. Diablo Unified
County
Contra Costa County
NCES school ID
062637003961

Schools near Northgate High

All 25 schools in Walnut Creek →

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.