Below is a list of Higganum CT zip codes. For your research we have also included Higganum Area Code, Time Zone, UTC and the local Middlesex County FIPS Code. Each Higganum Connecticut zip code has a center Longitude / Latitude point (the Higganum center is -72.557601928711 / 41.488399505615). For your convenience we have also indicated if that zip code in Higganum observes Daylight Savings time.