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 92286 Yucca Valley San Bernardino County 760
CA 92292 Palm Springs Riverside County 760
CA 92301 Adelanto San Bernardino County 442, 661, 760
CA 92304 Amboy San Bernardino County 442, 760
CA 92305 Angelus Oaks San Bernardino County 442, 760, 840, 909
CA 92307 Apple Valley San Bernardino County 442, 760
CA 92308 Apple Valley San Bernardino County 442, 760
CA 92309 Baker San Bernardino County 442, 760
CA 92310 Fort Irwin San Bernardino County 442, 760
CA 92311 Barstow San Bernardino County 442, 760
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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.