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 06796 West Cornwall Litchfield County 860, 959
CT 06798 Woodbury Litchfield County 203, 475, 860, 959
CT 06801 Bethel Fairfield County 203, 475
CT 06804 Brookfield Fairfield County 203, 475, 860, 959
CT 06807 Cos Cob Fairfield County 203, 475
CT 06810 Danbury Fairfield County 203, 475, 845
CT 06811 Danbury Fairfield County 203, 475, 845
CT 06812 New Fairfield Fairfield County 203, 475, 845, 860, 959
CT 06813 Danbury Fairfield County 203
CT 06814 Danbury Fairfield 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.