A
Mt. Diablo Elementary
PublicElementaryGrades K–5
5880 Mt. Zion Dr., Clayton, CA 94517 · (925) 672-4840 · Part of Mount Diablo Unified School District
Students
739
Students per teacher
30:1
Free or reduced lunch
21%
Setting
Suburb
Grades
K–5
What stands out about Mt. Diablo Elementary
- School Grade A: near the top of California’s public schools
- Math proficiency 24 pts above the state
- Reading / language arts 18 pts above the state
- Larger classes: 30:1 students per teacher
Test scores
EDFacts via Urban Institute Education Data Portal (SY2020-21) · 2020–21Math proficiency58%
State average 33.6%
Reading / language arts67%
State average 48.6%
Location
Directions ↗
5880 Mt. Zion Dr., Clayton
Students
Enrollment by grade
Kindergarten150
Grade 1126
Grade 2119
Grade 3116
Grade 4114
Grade 5114
Enrollment over time
743’20
667’21
693’22
738’23
739’24
About steady.
Who goes here
White 52%Two or more races 18%Hispanic 17%Asian 12%Black <1%Native Hawaiian/Pacific Islander <1%
As reported to NCES, share of students with a reported race or ethnicity.
What neighbors say
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Parents talk
Conversations in Town Square that mention Mt. Diablo Elementary.
Other schools in Mount Diablo Unified School District
School facts: U.S. Department of Education (NCES), 2024-2025 school year. Scores: EDFacts via Urban Institute Education Data Portal (SY2020-21). The School Grade is our own summary of state test results. Neighbor ratings are opinions, not an official measure of school quality.