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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.

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Fairfield County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Fairfield County.

County State ZIP Code City Area Codes
Fairfield County CT 06404 Botsford 203
Fairfield County CT 06440 Hawleyville 203
Fairfield County CT 06468 Monroe 203, 475
Fairfield County CT 06470 Newtown 203, 475, 860, 959
Fairfield County CT 06482 Sandy Hook 203, 475
Fairfield County CT 06484 Shelton 203, 475
Fairfield County CT 06491 Stevenson 203
Fairfield County CT 06497 Stratford 203
Fairfield County CT 06601 Bridgeport 203
Fairfield County CT 06602 Bridgeport 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.