Grade Trends

Concord High

Grades 9–12 Public District: Mt. Diablo Unified

4200 Concord Blvd., Concord, CA 94521 Map

Math (met standard)
17%
−15 state 32% · 2025-26
English (met standard)
40%
−17 state 57% · 2025-26
Science (met standard)
20%
−19 state 39% · 2025-26
Low income
70%
free or reduced-price lunch
Students
1,137
2024-25
Students per teacher
19.5
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 17% state 32% · 2025-26 40% state 57% · 2025-26 —
All grades 17% state 32% · 2025-26 40% state 57% · 2025-26 20% state 39% · 2025-26
Results by year (all grades)
School year Math English Science
2025-26 17% state 32% 40% state 57% 20% state 39%
2024-25 17% state 31% 43% state 57% 17% state 33%
2023-24 17% state 28% 45% state 56% 17% state 29%
2022-23 11% state 27% 46% state 55% 15% state 27%
2021-22 15% state 27% 49% state 55% 18% state 27%
2020-21 27% state 34% 39% state 59% 20% state 30%
2018-19 29% state 32% 56% state 57% 20% state 28%
2017-18 30% state 31% 51% state 56% —
2016-17 27% state 32% 52% state 60% —
2015-16 27% state 32% 52% state 59% —
2014-15 34% state 30% 50% state 56% —

Graduation & college

4-year graduation rate
98%
state 88% · 2025-26
Graduates meeting UC/CSU (A–G)
37%
state 55% · 2025-26
College-going rate
65%
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
Crossroads High
Grades 7–12 Alternative · Mt. Diablo Unified
2.1 mi
0%
−32 vs state · 2015-16
8%
−51 vs state · 2015-16
0%
−26 vs state · 2018-19
Not enough years of data 92% 12 Hispanic 83%
Olympic High
Grades 9–12 Alternative · Mt. Diablo Unified
2.2 mi
3%
−29 vs state
9%
−48 vs state
6%
−32 vs state
5% Average of math, English and science: 1% in 2022-23 → 6% in 2025-26 90% 233 Hispanic 75%
Clayton Valley Charter High
Grades 9–12 Charter · Clayton Valley Charter High District
2.2 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%
Mt. Diablo High
Grades 9–12 · Mt. Diablo Unified
2.6 mi
12%
−20 vs state
30%
−27 vs state
15%
−23 vs state
Average of math, English and science: 21% in 2022-23 → 19% in 2025-26 80% 1,397 Hispanic 74%
Floyd I. Marchus
Grades K–12 Special education · Contra Costa County Office of Education
3.4 mi
0%
10%
13%
Average of math, English and science: 7% in 2022-23 → 8% in 2025-26 60% 50 Black 39%
Ygnacio Valley High
Grades 9–12 · Mt. Diablo Unified
3.7 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%
Contra Costa School of Performing Arts
Grades 6–12 Charter · Contra Costa School of Performing Arts District
3.8 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%
College Park High
Grades 9–12 · Mt. Diablo Unified
4.5 mi
44%
+12 vs state
67%
+10 vs state
42%
+4 vs state
5% Average of math, English and science: 56% in 2022-23 → 51% in 2025-26 41% 1,948 White 39%
Northgate High
Grades 9–12 · Mt. Diablo Unified
4.9 mi
61%
+29 vs state
83%
+26 vs state
54%
+16 vs state
4% Average of math, English and science: 62% in 2022-23 → 66% in 2025-26 22% 1,546 White 46%