Below is a list of Byfield MA zip codes. For your research we have also included Byfield Area Code, Time Zone, UTC and the local Essex County FIPS Code. Each Byfield Massachusetts zip code has a center Longitude / Latitude point (the Byfield center is -70.948196411133 / 42.759399414062). For your convenience we have also indicated if that zip code in Byfield observes Daylight Savings time.