Below is a list of New London County CT zip codes. For your research we have also included New London County Area Code, Time Zone, UTC and the local County FIPS Code. Each New London County Connecticut zip code has a center Longitude / Latitude point (the New London County center is -72.103202819824 / 41.465599060059). For your convenience we have also indicated if that zip code in New London County observes Daylight Savings time.