Below is a list of Griswold CT zip codes. For your research we have also included Griswold Area Code, Time Zone, UTC and the local New London County FIPS Code. Each Griswold Connecticut zip code has a center Longitude / Latitude point (the Griswold center is -71.977096557617 / 41.601898193359). For your convenience we have also indicated if that zip code in Griswold observes Daylight Savings time.