Mt. Diablo High
Public
High Grades 9–12 Virtual
Part of Mt. Diablo Unified
2450 Grant St., Concord, CA 94520 · (925) 682-4030
Community ratings
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Academic performance
Math proficiency22%
State average 33.6%
Reading / language arts47%
State average 48.6%
EDFacts via Urban Institute Education Data Portal (SY2020-21)
At a glance
1,397Students enrolled
20:1Student–teacher ratio
80%Free / reduced lunch
SuburbSetting
Regular SchoolSchool type
Enrollment by grade
Grade 9342
Grade 10366
Grade 11355
Grade 12334
Students
Hispanic · 74%1,029
Black · 8%116
Asian · 8%106
White · 5%67
Two or more races · 4%62
Native Hawaiian/Pacific Islander · 1%16
Counts as reported to NCES; percentages are of students with a reported race/ethnicity.
Enrollment · last 5 years
1,567’20
1,513’21
1,498’22
1,477’23
1,397’24
Location
2450 Grant St. Concord
Neighbor reviews
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School facts from the U.S. Department of Education (NCES), 2024-2025 school year. Academic scores from the EDFacts via Urban Institute Education Data Portal (SY2020-21). Community ratings and reviews reflect neighbor opinions, not an official measure of school quality.