Below is a list of Graysville OH zip codes. For your research we have also included Graysville Area Code, Time Zone, UTC and the local Washington County FIPS Code. Each Graysville Ohio zip code has a center Longitude / Latitude point (the Graysville center is -81.172897338867 / 39.666301727295). For your convenience we have also indicated if that zip code in Graysville observes Daylight Savings time.