School overview
At a glance
Reported students
739
NCES CCD 2024–25, where reported
Teachers (FTE)
24.6
NCES CCD 2024–25
Student–teacher ratio
30:1
Calculated, not a class-size measure
Grades served
KG–05
NCES preliminary directory 2025–26
School benchmarks
California elementary enrollment
90th percentile
Compared with 5,929 same-level schools reporting enrollment.
District median enrollment
522
Mt. Diablo Elementary: 739 reported students.
State peer staffing position
99th percentile
30:1 reported; state peer median 22.4:1. Ratio is not class size.
Profile interpretation
What the reported data says about Mt. Diablo Elementary
Mt. Diablo Elementary is a public elementary school serving grades KG–05 in Clayton. It is one of 51 current school records connected to Mt. Diablo Unified. NCES reports 739 students for 2024–25.
Among 5,929 elementary schools in California with comparable records, this school is larger than the reported median of 455 students. Its enrollment is at approximately the 90th percentile for that peer group. Size describes the campus, not instructional quality.
The reported student–teacher ratio is 30:1, above the California median of 22.4:1 for the same school level. This ratio uses total enrollment and teacher FTE; it is not an average classroom headcount and can be affected by special programs or part-time staffing.
The two largest reported race and ethnicity groups are White (52.1%) and multiracial (17.6%). English learners represent 4.5% of enrollment. Students served under IDEA represent 7.2%. These figures help families understand who the school serves; they are not rating inputs.
Turn data into a school visit
Questions worth asking Mt. Diablo Elementary
- 1How do the reported 30:1 student–teacher ratio and 24.6 teacher FTE translate into actual class sizes by grade?
- 2Which advanced, gifted, career, arts, and computer-science courses are available this year, and how do students qualify?
- 3How are the school's 0.4 counselor FTE allocated across grades and student needs?
- 4Does community eligibility provide breakfast and lunch to every enrolled student, and are summer meals available?
Student context
Enrollment needs
- English learners
- 4.5%
- Students with disabilities
- 7.2%
- Free/reduced-price lunch
- 21%
- Lunch program
- Yes under Community Eligibility Option (CEO)
People available to students
Support staff
- Counselors (FTE)
- 0.4
- Nurses (FTE)
- 0.2
- Psychologists (FTE)
- 0
- Social workers (FTE)
- 0
Student demographics
Race and ethnicity share of reported enrollment
- White52.1%
- Hispanic17.3%
- Black0.9%
- Asian11.5%
- American Indian / Alaska Native0%
- Native Hawaiian / Pacific Islander0.5%
- Multiracial17.6%
Race/ethnicity: NCES CCD 2024–25 where reported, otherwise CRDC 2021–22. English learner and disability context: CRDC 2021–22. Privacy rules can produce missing values.
Learning opportunities
Programs reported by the school
Advanced Placement
Not reported
Gifted and talented
Not reported as offered
Computer science
Not reported
Program availability is from CRDC 2021–22 and can change. Confirm current courses and eligibility with the school.
Continue exploring
Other schools in Mt. Diablo Unified
Start with campuses at the same school level or with similar reported enrollment.
Meadow Homes Elementary
Elementary · Grades KG–05
732 reported students
Valhalla Elementary
Elementary · Grades KG–05
721 reported students
Walnut Acres Elementary
Elementary · Grades KG–05
689 reported students
Bancroft Elementary
Elementary · Grades KG–05
672 reported students
Delta View Elementary
Elementary · Grades KG–05
656 reported students
Pleasant Hill Elementary
Elementary · Grades KG–05
652 reported students