What are the New London, Connecticut Zip Codes for 2020, 2019Primary Zip Codes for New LondonZip CodePrimary CitySecondary City06320New LondonNew London, Ft Trumbull, U S Coast Guard Acad, United States Coast Guard AcCities sharing Zip Codes with New LondonZip CodePrimary CitySecondary CityMore Information06320New LondonFt Trumbull06320New LondonU S Coast Guard Acad06320New LondonUnited States Coast Guard AcAdvertisements