Very Good
#2345 of 9,539 schools in CA
Top 25% in state
Northgate High
High School · Mt. Diablo Unified
425 Castle Rock Rd., Walnut Creek, CA 94598
Enrollment
1,535
Student-Teacher
23.6:1
Score
7.6
Grades
9th – 12th
Enrollment
1,535
Student-Teacher
23.6:1
Score
7.6
Grades
9th – 12th
Data vintage
2022-23
Data vintage2022-23
How this school compares
California schools
#2,345 of 9,539
In Walnut Creek
#5 of 16
public schools
In district
#1 of 47
Mt. Diablo Unified
Equity
8.5 / 10
Excellent
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Northgate High
High School in Walnut Creek · grades 9th – 12th. Start here, then compare fit against nearby and district options.
Eagle Peak Montessori
0.3 mi away. Use as a geographic alternative in the same move search.
Foothill Middle
1.0 mi away. Use as a geographic alternative in the same move search.
About Northgate High
Northgate High is a public high school in Walnut Creek, CA, part of Mt. Diablo Unified. Northgate High serves approximately 1,535 students, and covers grades 9th-12th, and has a 23.6:1 student-teacher ratio.
Northgate High has a current MySchoolScout rating of 7.6 out of 10 and ranks #2,345 of 9,539 schools in CA. Structured state assessment records for Northgate High show 68% math proficiency (multi-year average, 2009-2024) and 80% reading/ELA proficiency (multi-year average, 2009-2024).
- This school 7.6 · Very Good
- District avg 6.2
- CA avg 6.5
What Parents Should Know
Northgate High runs 23.6:1 students to teachers, above the national average. That often means bigger classes. Ask how the school supports kids who need extra help, and whether there are teaching assistants or small-group time.
Score Breakdown
Full Profile · 4/4 metricsView breakdown
View breakdown
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Northgate High — Students at Northgate High score 67% proficient, which is below what's typical for similar communities (expected: 69%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
10%
Students qualifying for federal meal assistance
Test Scores CA CAASPP (2023-24)
Based on 30 test records from CA state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 6.9/10.
How Northgate High Compares
See how Northgate High performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Programs & Offerings
Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more
Location
425 Castle Rock Rd., Walnut Creek, CA 94598
Nearby Alternatives
Families considering Northgate High may also want to explore other high schools in the area. BEREAN CHRISTIAN HIGH SCHOOL (rated 6.8/10, 1.3 miles away), with a comparable rating. Another option is Ygnacio Valley High (rated 6.1/10, 2.1 miles away, in nearby Concord), a more accessible option. Additionally, CARONDELET HIGH SCHOOL (rated 5.9/10, 2.2 miles away, in nearby Concord), a more accessible option. For more schools in Walnut Creek, see our Walnut Creek schools guide .
Nearby Schools
20 within 2.2 mi| School | Distance | Rating |
|---|---|---|
| Eagle Peak Montessori Walnut Creek | 0.3 mi | 5.2 |
| Foothill Middle Walnut Creek | 1.0 mi | 7.2 |
| Walnut Acres Elementary Walnut Creek | 1.0 mi | 6.7 |
| BEREAN CHRISTIAN HIGH SCHOOL Walnut Creek | 1.3 mi | 6.8 |
| NORTHCREEK ACADEMY & PRESCHOOL Walnut Creek | 1.5 mi | 5.9 |
| NorthCreek Academy Walnut Creek | 1.5 mi | — |
| Berean Christian High School Walnut Creek | 1.4 mi | — |
| Indian Valley Elementary Walnut Creek | 1.4 mi | 6.7 |
| Valle Verde Elementary Walnut Creek | 1.8 mi | 5.9 |
| KLA SCHOOLS OF WALNUT CREEK Walnut Creek | 1.7 mi | 4.5 |
| Contra Costa School of Performing Arts Walnut Creek | 1.8 mi | 4.2 |
| SPRINGFIELD MONTESSORI SCHOOL Walnut Creek | 1.8 mi | — |
| Walnut Heights Elementary Walnut Creek | 1.8 mi | 7.6 |
| Ygnacio Valley High Concord | 2.1 mi | 6.1 |
| Woodside Elementary Concord | 2.3 mi | 3.7 |
| De La Salle High School of Concord Concord | 2.2 mi | — |
| DE LA SALLE HIGH SCHOOL Concord | 2.2 mi | 5.1 |
| CARONDELET HIGH SCHOOL Concord | 2.2 mi | 5.9 |
| Carondelet High School Concord | 2.2 mi | — |
| Bancroft Elementary Walnut Creek | 2.2 mi | 6.6 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 94598 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$188,170
Median Home Value
$1,307,100
Median Rent
$2,989/mo
Population
26,293
College Educated
73.8%
Homeownership
76.1%
Avg Commute
34.1 min
Poverty Rate
5.2%
Median Age
45.5
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Charter Oak High Covina, CA | 7.6 |
| Delano High Delano, CA | 7.6 |
| Hollywood Senior High Los Angeles, CA | 7.6 |
| Monterey High Monterey, CA | 7.6 |
| New West Charter Los Angeles, CA | 7.6 |
| Newbury Park High Newbury Park, CA | 7.6 |
Frequently Asked Questions
Common questions about Northgate High
What grades does Northgate High serve?
Northgate High serves students in grades 9th through 12th.
How many students attend Northgate High?
Northgate High has an enrollment of approximately 1,535 students.
What is the student-teacher ratio at Northgate High?
The student-teacher ratio at Northgate High is 23.6:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Northgate High rank in CA?
Northgate High ranks #2,345 of 9,539 schools in CA.
What is Northgate High's MySchoolScout rating?
Northgate High has a current MySchoolScout rating of 7.6 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Northgate High?
Based on loaded state assessment records, Northgate High has 68% math proficiency (multi-year average, 2009-2024) and 80% reading/ELA proficiency (multi-year average, 2009-2024).
Is Northgate High a charter school?
No, Northgate High is not a charter school. It is a traditional public school operated by the local school district.
Is Northgate High a Title I school?
No, Northgate High is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Northgate High?
10.0% of students at Northgate High qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Neighborhood Context
Powered by 
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 9th – 12th
- Enrollment
- 1,535
- Student-Teacher Ratio
- 23.6:1
- Teachers (FTE)
- 65
- Free/Reduced Lunch
- 10.0%
- Type
- regular
- Setting
- Small City
- County
- Contra Costa County
- Chronic Absenteeism (SY 2022-23)
- 14.7%
- Phone
- (925) 938-0900
- 4-Year Graduation
- 98.0%
Resources & Links
District
Mt. Diablo Unified- District Enrollment
- 29,356
- Schools in District
- 52
- Per-Pupil Spending
- $15,421
- District Rank
- #1 of 47
Other Schools in This District
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