Home > CA > Contra Costa County > Pleasant Hill > Zip 94523

Zip Code 94523 — Pleasant Hill, CA

94523 is a ZIP Code associated with Pleasant Hill, CA, located within Contra Costa. The postal region supports an estimated population of 34,592 residents across Data Pending housing units, with a population density of 1,853.6 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (37.954030, -122.076080)

Data MetricLocal Statistic
Postal / Zip Code94523
Primary CityPleasant Hill
State / ProvinceCA
CountyContra Costa
Total Population34,592
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density1,853.6 people/sq mi
TimezoneAmerica/Los_Angeles

How 94523 Compares

MetricZIP 94523Contra Costa CountyCA State Average
Population34,5921,171,36939,286,245
Median IncomeData PendingN/AN/A
Population Density1,853.6 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 94597Walnut Creek2.5 mi23,129N/A
Zip 94518Concord3.0 mi27,345N/A
Zip 94520Concord3.5 mi37,381N/A
Zip 94519Concord4.2 mi19,058N/A
Zip 94549Lafayette4.3 mi28,420N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →