Mt. Diablo Elementary
Public
Elementary Grades K–5
Part of Mt. Diablo Unified
5880 Mt. Zion Dr., Clayton, CA 94517 · (925) 672-4840
Community ratings
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Academic performance
Math proficiency58%
State average 33.6%
Reading / language arts67%
State average 48.6%
EDFacts via Urban Institute Education Data Portal (SY2020-21)
At a glance
739Students enrolled
30:1Student–teacher ratio
21%Free / reduced lunch
SuburbSetting
Regular SchoolSchool type
Enrollment by grade
Kindergarten150
Grade 1126
Grade 2119
Grade 3116
Grade 4114
Grade 5114
Students
White · 52%385
Two or more races · 18%130
Hispanic · 17%128
Asian · 12%85
Black · 1%7
Native Hawaiian/Pacific Islander · 1%4
Counts as reported to NCES; percentages are of students with a reported race/ethnicity.
Enrollment · last 5 years
743’20
667’21
693’22
738’23
739’24
Location
5880 Mt. Zion Dr. Clayton
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.