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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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Hartford County ZIP Codes

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

County State ZIP Code City Area Codes
Hartford County CT 06060 North Granby 413, 860, 959
Hartford County CT 06062 Plainville 860, 959
Hartford County CT 06064 Poquonock 860
Hartford County CT 06065 Riverton 860, 959
Hartford County CT 06067 Rocky Hill 860, 959
Hartford County CT 06070 Simsbury 860, 959
Hartford County CT 06073 South Glastonbury 860, 959
Hartford County CT 06074 South Windsor 860, 959
Hartford County CT 06078 Suffield 413, 860, 959
Hartford County CT 06080 Suffield 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.