Below is a list of Duncan Falls OH zip codes. For your research we have also included Duncan Falls Area Code, Time Zone, UTC and the local Muskingum County FIPS Code. Each Duncan Falls Ohio zip code has a center Longitude / Latitude point (the Duncan Falls center is -81.908203125 / 39.871200561523). For your convenience we have also indicated if that zip code in Duncan Falls observes Daylight Savings time.