U.S. postal lookup

U.S. ZIP Codes Database 2026

Search by ZIP code, city, county, or state and find clear postal details with maps, time zones, and area code data.

42,735 verified records
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California ZIP Codes

Complete postal directory, details, and geographic map for the State of California.

State ZIP Code City County Area Codes
CA 95251 Vallecito Calaveras County 209, 350
CA 95252 Valley Springs Calaveras County 209, 350
CA 95253 Victor San Joaquin County 209, 350
CA 95254 Wallace Calaveras County 209, 350
CA 95255 West Point Calaveras County 209, 350
CA 95257 Wilseyville Calaveras County 209, 350
CA 95258 Woodbridge San Joaquin County 209, 350
CA 95267 Stockton San Joaquin County 209
CA 95269 Stockton San Joaquin County 209
CA 95296 Stockton San Joaquin County 209
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About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.