Guilford Zip Codes - New Haven County CT

Guilford, CT Zip Code Map

Guilford, CT is a city located in New Haven County, Connecticut and has a land area of 47.12 square miles (122.04 km2). The water area for the city is 1.57 square miles or 4.07 km2. There is one unique zip code in Guilford, Connecticut and it is 06437. The area code(s) for Guilford is 203/475.

Zip Codes for Guilford, CT (1)
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06437 Guilford New Haven

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