Home > CA > Contra Costa County > Walnut Creek > Zip 94597

Zip Code 94597 — Walnut Creek, CA

94597 is a ZIP Code associated with Walnut Creek, CA, located within Contra Costa. The postal region supports an estimated population of 23,129 residents across Data Pending housing units, with a population density of 2,203.4 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (37.917680, -122.071800)

Data MetricLocal Statistic
Postal / Zip Code94597
Primary CityWalnut Creek
State / ProvinceCA
CountyContra Costa
Total Population23,129
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density2,203.4 people/sq mi
TimezoneAmerica/Los_Angeles

How 94597 Compares

MetricZIP 94597Contra Costa CountyCA State Average
Population23,1291,171,36939,286,245
Median IncomeData PendingN/AN/A
Population Density2,203.4 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 94523Pleasant Hill2.5 mi34,592N/A
Zip 94596Walnut Creek2.8 mi23,417N/A
Zip 94549Lafayette2.8 mi28,420N/A
Zip 94595Walnut Creek3.2 mi16,988N/A
Zip 94518Concord3.5 mi27,345N/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 →