Home > CA > Contra Costa County > Bethel Island > Zip 94511

Zip Code 94511 — Bethel Island, CA

94511 is a ZIP Code associated with Bethel Island, CA, located within Contra Costa. The postal region supports an estimated population of 1,864 residents across Data Pending housing units, with a population density of 137.0 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (38.028830, -121.640390)

Data MetricLocal Statistic
Postal / Zip Code94511
Primary CityBethel Island
State / ProvinceCA
CountyContra Costa
Total Population1,864
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density137.0 people/sq mi
TimezoneAmerica/Los_Angeles

How 94511 Compares

MetricZIP 94511Contra Costa CountyCA State Average
Population1,8641,171,36939,286,245
Median IncomeData PendingN/AN/A
Population Density137.0 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 94561Oakley3.7 mi46,368N/A
Zip 94548Knightsen3.8 mi832N/A
Zip 95219Stockton6.8 mi31,713N/A
Zip 94513Brentwood7.5 mi69,755N/A
Zip 95641Isleton8.7 mi2,214N/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 →