Northgate High

Grades 9–12 Public District: Mt. Diablo Unified

425 Castle Rock Rd., Walnut Creek, CA 94598 Map

Math (met standard)
61%
+29 state 32% · 2025-26
English (met standard)
83%
+26 state 57% · 2025-26
Science (met standard)
54%
+16 state 39% · 2025-26
Low income
22%
free or reduced-price lunch
Students
1,546
2024-25
Students per teacher
23.1
2024-25

Test score trends

Share of students who met or exceeded the state standard each year.

Latest results by grade

Grade Math English Science
Grade 11 61% state 32% · 2025-26 83% state 57% · 2025-26 —
All grades 61% state 32% · 2025-26 83% state 57% · 2025-26 54% state 39% · 2025-26
Results by year (all grades)
School year Math English Science
2025-26 61% state 32% 83% state 57% 54% state 39%
2024-25 51% state 31% 74% state 57% 54% state 34%
2023-24 57% state 28% 77% state 56% 54% state 32%
2022-23 54% state 27% 81% state 55% 52% state 29%
2021-22 59% state 27% 87% state 55% 19% state 27%
2020-21 65% state 34% 85% state 59% 65% state 30%
2018-19 63% state 32% 79% state 57% 45% state 28%
2017-18 60% state 31% 76% state 56% —
2016-17 62% state 32% 81% state 60% —
2015-16 61% state 32% 75% state 59% —
2014-15 60% state 30% 83% state 56% —

Graduation & college

4-year graduation rate
100%
state 88% · 2025-26
Graduates meeting UC/CSU (A–G)
66%
state 55% · 2025-26
College-going rate
89%
state 66% · 2022-23

Graduation rate: students who earned a regular diploma within four years. UC/CSU: share of graduates who completed the A–G courses required by the University of California and California State University. College-going: share of high school completers who enrolled in any college within 12 months.

Students

Race and ethnicity, 2024-25

Year-by-year history is loaded from the NCES Common Core of Data (2017-18 onward).

Nearby schools

Subject percentages show the share of students who met or exceeded the state standard.

Pick to compare
Contra Costa School of Performing Arts
Grades 6–12 Charter · Contra Costa School of Performing Arts District
1.8 mi
19%
−16 vs state · 2024-25
41%
−9 vs state · 2024-25
29%
−4 vs state · 2024-25
Average of math, English and science: 29% in 2021-22 → 30% in 2024-25 29% 285 Hispanic 43%
Ygnacio Valley High
Grades 9–12 · Mt. Diablo Unified
2.1 mi
17%
−15 vs state
37%
−20 vs state
21%
−17 vs state
5% Average of math, English and science: 20% in 2022-23 → 25% in 2025-26 81% 1,059 Hispanic 78%
Las Lomas High
Grades 9–12 · Acalanes Union High
2.8 mi
51%
+19 vs state
67%
+10 vs state
52%
+13 vs state
5% Average of math, English and science: 62% in 2022-23 → 57% in 2025-26 15% 1,577 White 51%
Clayton Valley Charter High
Grades 9–12 Charter · Clayton Valley Charter High District
3.6 mi
46%
+14 vs state
77%
+20 vs state
49%
+10 vs state
12% Average of math, English and science: 45% in 2022-23 → 57% in 2025-26 22% 2,373 Two or more 37%
Horizons School: Independent Study
Grades K–12 Alternative · Mt. Diablo Unified
3.8 mi
39%
+4 vs state
51%
−2 vs state
26%
−11 vs state
3% Average of math, English and science: 35% in 2022-23 → 38% in 2025-26 46% 182 Hispanic 45%
Prospect High (Continuation)
Grades 9–12 Alternative · Mt. Diablo Unified
3.8 mi
9%
−23 vs state
0%
−57 vs state
0%
Average of math, English and science: 4% in 2022-23 → 5% in 2025-26 67% 60 Hispanic 68%
Acalanes Center for Independent Study
Grades 9–12 Alternative · Acalanes Union High
4.3 mi
28%
−4 vs state
68%
+11 vs state
18%
−15 vs state
9% Average of math, English and science: 47% in 2022-23 → 38% in 2025-26 16% 61 White 64%
Monte Vista High
Grades 9–12 · San Ramon Valley Unified
4.7 mi
64%
+33 vs state
79%
+22 vs state
65%
+32 vs state
Average of math, English and science: 70% in 2022-23 → 69% in 2025-26 5% 2,042 White 42%
Acalanes High
Grades 9–12 · Acalanes Union High
4.9 mi
70%
+38 vs state
85%
+28 vs state
60%
+22 vs state
Average of math, English and science: 73% in 2022-23 → 72% in 2025-26 7% 1,256 White 63%
Concord High
Grades 9–12 · Mt. Diablo Unified
4.9 mi
17%
−15 vs state
40%
−17 vs state
20%
−19 vs state
Average of math, English and science: 24% in 2022-23 → 26% in 2025-26 70% 1,137 Hispanic 58%