How is Mt. Diablo High School rated?

Mt. Diablo High School holds a D+ rating on TopHap's A-to-D scale, which blends state test results, academic progress and student outcomes. Mount Diablo Unified School District is rated B- overall.

How do students at Mt. Diablo High School perform on state tests?

In the 2024-2025 testing year, the share of Mt. Diablo High School students meeting or exceeding the state standard was 38% in English Language Arts, 12% in Math and 11% in Science.

What grades does Mt. Diablo High School serve?

Mt. Diablo High School serves grades 9–12 as a high school.

How many students attend Mt. Diablo High School?

1,397 students attend Mt. Diablo High School, down from 1,540 the prior year, with a student-teacher ratio of 19.8:1.

Which homes are assigned to Mt. Diablo High School?

TopHap matches 18,285 residential properties to Mt. Diablo High School in and around Concord. Each one has its own page with a value estimate, sale history, taxes and the rest of its assigned schools.

Which school district is Mt. Diablo High School in?

Mt. Diablo High School is part of Mount Diablo Unified School District, which reports 51 schools, 29,494 students and $13,486 of spending per student.

Mt. Diablo High School

Mt. Diablo High School is a public high school in Concord, CA, serving grades 9–12, rated D+, with 1,397 students and a 19.8:1 student-teacher ratio.

In 2024-2025, the share of students meeting the state standard was 38% in English Language Arts, 12% in Math and 11% in Science.

D+TopHap school rating

Rating: D+
Grades: 9–12
Enrollment: 1,397
Students per teacher: 19.8:1
Level: High
Type: Public · Regular

2024-2025 testing year

State test results

Share of students meeting or exceeding the state standard.

English Language Arts38%

Math12%

Science11%

Academics and programs

Open enrollment: Yes

Student body

Hispanic74%

Black8%

Asian8%

White5%

Two or more races4%

Pacific Islander1%

Male / female: 53% / 47%
Free or reduced lunch: 80%
Enrollment change vs prior year: -9.3%
Prior-year enrollment: 1,540

Homes assigned to this school

18,285 homes in TopHap's records are assigned to Mt. Diablo High School. These 40 are sampled evenly down the value ranking, so they span the whole zone rather than just its most expensive streets.

School details

Address: 2450 Grant St, Concord, CA 94520
Phone: (925) 682-4030
Website: mdusd.org
Setting: Suburb - Large
Status: Operational
NCES ID: 062637003960

Visit the school website

School district

Mount Diablo Unified School District

District rating: B-
Schools: 51
Students: 29,494
Spending per student: $13,486
Teachers (FTE): 1,274
Grades: K–12

See every school in Mount Diablo Unified School District