New Haven Zip Codes - New Haven County CT

New Haven, CT is a city located in New Haven County, Connecticut and has a land area of 19.63 square miles (50.84 km2). The water area for the city is 1.38 square miles or 3.57 km2. There are 26 total unique zip codes in New Haven, Connecticut. The area code(s) for New Haven is 203/475.