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
All states and U.S. territories
Maps and coordinates
State directory

California ZIP Codes

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

State ZIP Code City County Area Codes
CA 91353 Sun Valley Los Angeles County 818
CA 91354 Valencia Los Angeles County 661
CA 91355 Valencia Los Angeles County 661
CA 91356 Tarzana Los Angeles County 310, 424, 747, 818
CA 91357 Tarzana Los Angeles County 213
CA 91358 Thousand Oaks Ventura County 805
CA 91359 Westlake Village Los Angeles County 805, 820
CA 91360 Thousand Oaks Ventura County 805, 820
CA 91361 Westlake Village Ventura County 310, 424, 747, 805, 818, 820
CA 91362 Thousand Oaks Ventura County 747, 805, 818, 820
Page 40 of 266

Geographic Map of California

Postal context

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.