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 91226 Glendale Los Angeles County 818
CA 91301 Agoura Hills Los Angeles County 310, 424, 747, 818
CA 91302 Calabasas Los Angeles County 310, 424, 747, 818
CA 91303 Canoga Park Los Angeles County 747, 818
CA 91304 Canoga Park Los Angeles County 747, 805, 818, 820
CA 91305 Canoga Park Los Angeles County 213
CA 91306 Winnetka Los Angeles County 747, 818
CA 91307 West Hills Los Angeles County 747, 818
CA 91308 West Hills Los Angeles County 213
CA 91309 Canoga Park Los Angeles County 213
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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.