Postal reference / United States

94803El Sobrante, California

ZIP code 94803 is a United States postal code for El Sobrante, California. Its county association is Contra Costa County. The map reference point is at 37.9693, -122.2901.

State / territory
California
Recorded place name
El Sobrante
County association
Contra Costa
Estimated coordinate
37.9693, -122.2901
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ZIP prefix
948 · 10 ZIP codes share it
Data source
GeoNames postal reference, snapshot September 26, 2026

GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.

Area

Land area
12.819 sq mi (2023 Census Gazetteer)

Figures are for the ZIP Code Tabulation Area (ZCTA) that most closely matches this ZIP code, not an exact match to USPS delivery boundaries. Source: U.S. Census Bureau, 2023 Gazetteer + 2023 ACS 5-Year Estimates, retrieved 2026-09-27. How to read this data.

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Other ZIP codes in El Sobrante, CA

El Sobrante has 2 ZIP codes in the reference dataset.

Nearby ZIP code reference points

ZIP codePlaceStateCounty associationMiles
94820El SobranteCAContra Costa0.6
94564PinoleCAContra Costa1.9
94806San PabloCAContra Costa2.6
94805RichmondCAContra Costa2.6
94547HerculesCAContra Costa3.0
94530El CerritoCAContra Costa3.7
94804RichmondCAContra Costa3.8
94802RichmondCAContra Costa3.9

Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.

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