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Zip Code 94903 — San Rafael, CA

94903 is a ZIP Code associated with San Rafael, CA, located within Marin. The postal region supports an estimated population of 30,615 residents across Data Pending housing units, with a population density of 594.5 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (38.024850, -122.552200)

Data MetricLocal Statistic
Postal / Zip Code94903
Primary CitySan Rafael
State / ProvinceCA
CountyMarin
Total Population30,615
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density594.5 people/sq mi
TimezoneAmerica/Los_Angeles

How 94903 Compares

MetricZIP 94903Marin CountyCA State Average
Population30,615290,84639,286,245
Median IncomeData PendingN/AN/A
Population Density594.5 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 94960San Anselmo2.4 mi16,232N/A
Zip 94949Novato3.0 mi17,787N/A
Zip 94901San Rafael4.1 mi41,307N/A
Zip 94957Ross4.3 mi2,321N/A
Zip 94973Woodacre4.8 mi1,689N/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 →