📊 Directory: NCES CCD 2024–2025·📈 Ratings: CAASPP 2023–24·🔄 Updated: August 2026·Editorial standards
📍 Clayton, CA · Contra Costa County

School District for
Zip Code 94517 — Clayton, CA

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ZIP 94517 is served by Mount Diablo Unified School District, rated 7/10 — 60th percentile in California.Ratings are percentile ranks within a single state, so they are not comparable across states.
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Mount Diablo Unified School District

7
out of 10 Rating Good
State reading & math tests (CAASPP 2023–24) · 60th percentile in CA
● Steady — within 1.1 points of 2021–22
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Can I rent in Clayton and still attend schools in this district?▼
Yes. School district assignment is based on your home address, not whether you own or rent. As long as your rental address falls within the Mount Diablo Unified School District boundaries, your children are eligible to attend district schools.
How does the Mount Diablo Unified School District rating compare to other districts in CA?▼
The Mount Diablo Unified School District has an overall rating of 7/10 (Good) based on students’ reading and math proficiency on state assessments. Use our best districts in CA page to compare with other districts statewide.
What is the average class size in Mount Diablo Unified School District?▼
Class size data at the individual school level is not reported in the NCES Common Core of Data. Contact the Mount Diablo Unified School District directly for current class size information, or check your state's department of education website.
Does Mount Diablo Unified School District offer magnet schools or special programs?▼
Many districts offer magnet programs, gifted education, STEM academies, and dual-language programs. Contact the Mount Diablo Unified School District directly or visit their website to learn about special program options and enrollment requirements.
School District · Clayton, CA
Mount Diablo Unified School District
📍 Contra Costa County, CA · Zip Code 94517
7/10
Rating
29,201
Students
52
Schools
—
District Type
Good About this district: Public school district serving Clayton, CA
District Contact & InformationSource: NCES 2024–2025
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Grades Served
Kindergarten – 12th
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District Phone
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District Website
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District Office
1936 Carlotta Dr., Concord, CA 94519
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Assigned Schools for Zip 94517
Based on NCES district data · Always verify directly with the district
Schools Nearest Zip Code 94517NCES 2024–2025
  • Diablo View Middle — 3.2 mi · Grades 6–8 · 514 students
  • Mt. Diablo Elementary — 4.3 mi · Grades K–5 · 739 students
  • Pine Hollow Middle — 4.8 mi · Grades 6–8 · 538 students
  • Highlands Elementary — 5.0 mi · Grades K–5 · 512 students
  • Ayers Elementary — 6.3 mi · Grades K–5 · 394 students
  • Northgate High — 6.4 mi · Grades 9–12 · 1,546 students
  • Silverwood Elementary — 6.6 mi · Grades K–5 · 530 students
  • Eagle Peak Montessori — 6.6 mi · Grades 1–8 · 301 students
Distance is measured from the center of zip code 94517 to each school, using Census ZCTA centroids and NCES school coordinates. This is a proximity list, not an attendance-zone assignment — the school your child is assigned to depends on your exact address, so confirm with the district.
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Schools in Mount Diablo Unified School District
Multiple School Levels
Contact Mount Diablo Unified School District to confirm your school assignment based on your home address within this zip code.
District Statisticsvs. National Average
MetricMount Diablo Unified School DistrictNational AverageComparison
Student Enrollment29,2013,544↑ Larger than avg
Number of Schools527Varies by district
Per-Pupil Spending$16,614/yr$17,619/yr≈ Near avg
District Type—Public District—
Overall Rating7/10 — Good—Above average
Per-pupil figure: US Census Bureau, Annual Survey of School System Finances, FY2024 — current spending per pupil, which excludes capital outlay and debt service. National averages: NCES Common Core of Data 2024–25, mean of the 13,327 regular operating districts (the median district enrolls about 1,100 students).
🌏 District Map Boundary from U.S. Census TIGER · 51 of 52 schools mapped
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Always verify before deciding: Contact Mount Diablo Unified School District directly to confirm your exact school assignment. Boundaries change annually and open enrollment may alter your options.
🔢 Show the math behind this rating
Reading proficiency: 45.5% · Math proficiency: 37.3% · Combined average: 41.4%
Ranked against 963 rated districts in CA → 60th percentile → 7/10.
Source: California Dept. of Education CAASPP Smarter Balanced, 2023–24 school year. Full methodology →
Frequently Asked Questions
Is Mount Diablo Unified School District a public school district?▼
Mount Diablo Unified School District is classified as a public school district. Public school districts are funded by local, state, and federal tax dollars and are open to all students residing within district boundaries. Enrollment is generally free of charge, and students are assigned to schools based on home address. To confirm eligibility and enrollment requirements for zip code 94517, contact Mount Diablo Unified School District directly.

About Mount Diablo Unified School District

Zip code 94517 in Mount Diablo, California is served by Mount Diablo Unified School District for public school enrollment. The district covers grades Kindergarten–12th. This page provides a data-driven overview of Mount Diablo Unified School District’s funding levels, size, rating, and what families should know before enrolling or making a housing decision in this area.

Understanding the 7/10 Rating

With a rating of 7/10 (above average), Mount Diablo Unified School District ranks among California’s above average-rated school systems. Our ratings are based on state assessment results — the share of students scoring proficient or above in reading and math, as reported in California’s CAASPP Smarter Balanced assessments (2023–24 school year). We average each district’s reading and math proficiency, then rank it against other districts in the same state to produce a 1–10 score. Because California is compared only against itself, the rating reflects how this district performs relative to its in-state peers.

Mount Diablo Unified School District earns an above-average rating, with reading and math proficiency rates stronger than most other districts in California. Above-average districts generally show solid and consistent academic results across their schools. Families considering this area will find a district with meaningful academic strengths. Research the specific schools assigned to your address — even above-average districts have variation between individual buildings.

Enrollment for Families in Zip Code 94517

Children in zip code 94517 are assigned to Mount Diablo Unified School District for public school enrollment, covering grades Kindergarten–12th. School assignments are address-specific — your elementary, middle, and high school placements depend on your exact street address within zip code 94517, not just your neighborhood. Two homes on opposite ends of the same zip code may be assigned to different schools within the same district.

To confirm your specific school assignments, contact Mount Diablo Unified School District at the number listed on the district website or visit the district’s official website. Typical enrollment documents include proof of address, a government-issued birth certificate, immunization records, and any existing school records or IEP documentation. If your child has an IEP or 504 plan, bring that documentation to enrollment — California districts are required to continue services within a reasonable period. Fall enrollment windows typically open in late winter or early spring; contact the district for exact dates and required steps.

School Districts and Home Values in Clayton

For families considering a purchase in the Clayton area, district assignment matters financially. Because Mount Diablo Unified School District serves zip code 94517, district assignment still factors into home-pricing comparisons between zip code 94517 and neighboring areas. District boundaries are address-specific — verify the exact district assignment for any property you’re seriously considering rather than assuming based on the neighborhood. A single block can place two adjacent homes in different districts with different ratings and different annual property tax implications.

Use the property tax estimator on this page to calculate estimated annual tax obligations based on your target purchase price. In California, property taxes are a primary funding source for public schools — your tax payments directly support Mount Diablo Unified School District programs and staff. Understanding both district quality and the associated tax burden is essential financial due diligence before committing to any home in zip code 94517.

Data Sources and Accuracy

All district information on this page is sourced from the NCES Common Core of Data (CCD) 2024–2025, the U.S. Department of Education’s annual census of all public school districts — the same dataset used by researchers, journalists, and policymakers to analyze American public education. District boundaries, school assignments and phone numbers are updated annually when NCES publishes new data, typically in spring; per-pupil spending comes from the US Census Bureau's Annual Survey of School System Finances, released about two years after the fiscal year it covers. Always verify your specific school assignment and enrollment requirements directly with Mount Diablo Unified School District before making any housing or enrollment decision based on zip code 94517 data.

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District at a Glance
Overall Rating7/10
GradeGood
District Type—
Total Students29,201
Total Schools—
Per-Pupil Spending$16,614/yr
Data SourceNCES 2024