ZIP Code 94523: Pleasant Hill, CA
County: Contra Costa County
Coordinates: 37.95400, -122.07370
ZIP Type: Standard
Time Zone: Pacific Time (PT)
This profile provides an in-depth look at ZIP code 94523, serving Pleasant Hill in CA. It lies in Contra Costa County and supports delivery, planning, and address verification.
| Primary City | Pleasant Hill |
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| ZIP Code | 94523 |
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| County | Contra Costa County |
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| State | CA |
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| Latitude / Longitude | 37.95400, -122.07370 |
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| ZIP Type | Standard |
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| Time Zone | Pacific Time (PT) |
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| Data Updated | 2026-01-08 |
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Maps & Useful Links
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These links show the approximate center point for ZIP 94523 (not an exact boundary).
Geographic & Administrative Context
The geographic center of ZIP code 94523 is approximately 37.95400 (latitude) and -122.07370 (longitude). This location sits within Contra Costa County, contributing to regional planning across CA.
Local Coverage Notes
ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 94523 for mail delivery and general location reference in
Contra Costa County,
CA.
Coverage may include nearby neighborhoods and adjacent unincorporated areas commonly associated with Pleasant Hill.
Related ZIP Codes (Nearby)
Explore other postal codes near Pleasant Hill within CA.
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Frequently Asked Questions
What is the primary city for ZIP code 94523?
The primary city for this ZIP code is Pleasant Hill, located in CA.
In which county is 94523 located?
ZIP code 94523 is situated within Contra Costa County, CA.
What are the coordinates for 94523?
The approximate center point is 37.95400 (Latitude) and -122.07370 (Longitude).
Is ZIP code 94523 active?
This page lists ZIP 94523 as Listed based on the latest refresh date shown above.
Does ZIP 94523 cover multiple areas?
Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.
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Methodology & Data Notes
How we build this page: We generate this page from a structured ZIP dataset and refresh key fields (city, county, and coordinates) during scheduled updates. Coordinates represent an approximate center point, not an official boundary map.
Sources: Public ZIP reference datasets and geographic coordinate references. If you use specific sources (e.g., USPS, Census), list them on your About/Methodology page.
Page updated: 2026-01-08