Northgate High School
High school in Walnut Creek, CA · Mt. Diablo Unified · Grades 9-12
On the spring 2026 state tests, 83% of Northgate High School students met or exceeded California's reading (ELA) standard and 61% met the math standard. In reading, that is 34 points above the Mt. Diablo Unified average (49%) and 34 points above the California average (49%). Its reading result is higher than 88% of Bay Area high schools, and it ranks 1st of 2 public high schools in Walnut Creek. Reading results in 2026 were 6 points higher than in 2024, and math results were 4 points higher than in 2024.
Test scores, 2024 to 2026
| Subject | Spring 2024 | Spring 2025 | Spring 2026 | Change |
|---|---|---|---|---|
| Reading (ELA) | 77% | 74% | 83% | +6 pts |
| Math | 57% | 51% | 61% | +4 pts |
Compared with nearby averages
| Spring 2026 | Reading (ELA) | Math |
|---|---|---|
| Northgate High School | 83% | 61% |
| Mt. Diablo Unified | 49% | 39% |
| Contra Costa County | 52% | 43% |
| California | 49% | 38% |
Where graduates go
Share of the class of 2022-23 enrolled in college within 16 months of graduating.
For fall 2025, UC admitted 143 of 178 freshman applicants from Northgate High School (80%), and 75 enrolled.
Homes near Northgate High School
The typical home value in ZIP code 94598, where Northgate High School is located, is $1.37M, up 2.3% over the past year (Zillow Home Value Index). Prices inside the school's attendance zone can differ.
Zillow and Redfin can both search for homes inside a school’s attendance zone and email you new listings. Search for the school by name on either site and save the search.
Nearby high schools
| Distance | School | Reading (ELA) | Math | Typical home value (ZIP) |
|---|---|---|---|---|
| 2.0 mi | Ygnacio Valley HighConcord · Grades 9-12 | 37% | 17% | $825K |
| 3.1 mi | Las Lomas HighWalnut Creek · Grades 9-12 | 67% | 51% | $1.06M |
| 3.5 mi | Clayton Valley Charter High CharterConcord · Grades 9-12 | 77% | 45% | $772K |
| 4.7 mi | Concord HighConcord · Grades 9-12 | 40% | 17% | $772K |
| 4.7 mi | Monte Vista HighDanville · Grades 9-12 | 79% | 64% | $1.71M |
| 5.0 mi | Acalanes HighLafayette · Grades 9-12 | 85% | 70% | $1.91M |
School details
- Address
- 425 Castle Rock Road, Walnut Creek, CA 94598
Get directions · See it on our map - Phone
- (925) 938-0900
- District
- Mt. Diablo Unified
- County
- Contra Costa County
- Grades
- 9-12
- Students
- 1,578 (2025-26)
- Type
- High school · Traditional
- State school code
- 07617540730044
Common questions
How did Northgate High School do on state tests?
In spring 2026, 83% of students met or exceeded the reading (ELA) standard and 61% met the math standard, compared with 49% and 38% across California.
How many students attend Northgate High School?
1,578 students were enrolled in the 2025-26 school year, in grades 9-12.
How many Northgate High School students get into UC?
For fall 2025, 143 of 178 UC freshman applicants from Northgate High School were admitted. Of the class of 2022-23, 18% enrolled at a UC campus within 16 months.
How much do homes cost near Northgate High School?
The typical home value in ZIP code 94598, where Northgate High School is located, is $1.37M, up 2.3% over the past year (Zillow Home Value Index). Prices inside the school's attendance zone can differ.
Does living near Northgate High School guarantee a spot?
No. Public schools assign students by attendance zone, which Mt. Diablo Unified sets and can change. Confirm the zone for a specific address with the district before you buy or rent.