Find the last 4 digits (ZIP+4) for an address in 94523

ZIP 94523, Pleasant Hill, CA is filled in. Just type the street address.

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ZIP Code 94523 – Pleasant Hill, CA

Pleasant Hill, California · Contra Costa County · Pacific time

ZIP code94523
CityPleasant Hill
StateCalifornia
CountyContra Costa County
Population34,592
Time zonePacific · local time
ZIP typeStandard (has a Census ZCTA area)
Land area7.21 sq mi
Center (lat, long)37.9542, -122.0758

Area codes in this area

925

These are the area codes that most often serve ZIP 94523 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

94597 Walnut Creek · 2.5 mi94518 Concord · 2.9 mi94522 Concord · 2.9 mi94524 Concord · 2.9 mi94529 Concord · 2.9 mi94520 Concord · 3.5 mi94519 Concord · 4.2 mi94598 Walnut Creek · 4.2 mi

About ZIP 94523

ZIP code 94523 is assigned to Pleasant Hill, California. It lies in Contra Costa County. Its Census area covers about 7.21 square miles of land. The closest neighboring ZIP is 94597 (Walnut Creek), about 2.5 miles away.

Every address in 94523 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources