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 06001 Avon Hartford County 860, 959
CT 06002 Bloomfield Hartford County 860, 959
CT 06006 Windsor Hartford County 860
CT 06010 Bristol Hartford County 203, 475, 860, 959
CT 06011 Bristol Hartford County 860
CT 06013 Burlington Hartford County 860, 959
CT 06016 Broad Brook Hartford County 860, 959
CT 06018 Canaan Litchfield County 413, 860, 959
CT 06019 Canton Hartford County 860, 959
CT 06020 Canton Center Hartford County 860, 959
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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.