Below is a list of Millfield OH zip codes. For your research we have also included Millfield Area Code, Time Zone, UTC and the local Athens County FIPS Code. Each Millfield Ohio zip code has a center Longitude / Latitude point (the Millfield center is -82.103103637695 / 39.434600830078). For your convenience we have also indicated if that zip code in Millfield observes Daylight Savings time.