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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State directory

Connecticut ZIP Codes

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

State ZIP Code City County Area Codes
CT 06481 Rockfall Middlesex County 860, 959
CT 06482 Sandy Hook Fairfield County 203, 475
CT 06483 Seymour New Haven County 203, 475
CT 06484 Shelton Fairfield County 203, 475
CT 06487 South Britain New Haven County 203
CT 06488 Southbury New Haven County 203, 475, 860, 959
CT 06489 Southington Hartford County 203, 475, 860, 959
CT 06491 Stevenson Fairfield County 203
CT 06492 Wallingford New Haven County 203, 475, 860, 959
CT 06493 Wallingford New Haven County 203
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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.