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 06232 Andover Tolland County 860, 959
CT 06233 Ballouville Windham County 860
CT 06234 Brooklyn Windham County 860, 959
CT 06235 Chaplin Windham County 860, 959
CT 06237 Columbia Tolland County 860, 959
CT 06238 Coventry Tolland County 860, 959
CT 06239 Danielson Windham County 401, 860, 959
CT 06241 Dayville Windham County 401, 860, 959
CT 06242 Eastford Windham County 860, 959
CT 06243 East Killingly Windham County 401, 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.