School District · California
Antioch Unified School District
📍 Antioch, CA · Contra Costa County · NCES LEAID 0602850
Kindergarten – 12th
Grade Span
District Contact & InformationSource: NCES CCD 2024–25
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Grades Served
Kindergarten – 12th
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District Mailing Address
510 G St., Antioch, CA 94509
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Enrollment
15,192 students
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NCES District ID (LEAID)
0602850
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District Type
Public School District
Zip Codes Served by Antioch Unified School District2 zip codes
Frequently Asked Questions
What zip codes are in Antioch Unified School District?▼
Antioch Unified School District serves 2 zip codes: 94509, 94531. Zip codes and district boundaries do not line up exactly, so confirm your exact address with the district office before you rely on an assignment.
How is Antioch Unified School District rated?▼
Antioch Unified School District has an overall rating of 2 out of 10 (Poor), based on the share of students proficient in reading and math on state assessments (NCES EDFacts). That places it in the 11th percentile among California school districts. Ratings are percentile-ranked within California only and are not comparable across states.
How many students attend Antioch Unified School District?▼
The NCES Common Core of Data directory reports enrollment of 15,192 students across 25 schools for Antioch Unified School District.
What grades does Antioch Unified School District serve?▼
Antioch Unified School District is listed in the NCES directory as serving grades Kindergarten – 12th.
How do I contact Antioch Unified School District?▼
You can reach Antioch Unified School District by phone at (925)779-7500 or by mail at 510 G St., Antioch, CA 94509. Contact details come from the NCES district directory and are the best way to confirm which school your address is assigned to.
About Antioch Unified School District
Antioch Unified School District is a public school district serving 2 zip codes in California, primarily in Contra Costa County. It carries an overall rating of 2/10 (Poor), the 11th percentile among California districts. That rating reflects the share of students proficient in reading and math on state assessments (NCES EDFacts, 2021–22 for most districts with a 2017–18 fallback for the rest) and is ranked only against other California districts — scores are not comparable between states. Directory details on this page come from the NCES Common Core of Data, 2024–25.
District boundaries are address-specific and do not follow zip code lines exactly — a single zip code can
be split between two or more districts. Use the zip codes listed above as a starting point, then confirm your
assignment with the district office at (925)779-7500 before making a housing decision.