Below is a list of Coolville OH zip codes. For your research we have also included Coolville Area Code, Time Zone, UTC and the local Athens County FIPS Code. Each Coolville Ohio zip code has a center Longitude / Latitude point (the Coolville center is -81.80069732666 / 39.223899841309). For your convenience we have also indicated if that zip code in Coolville observes Daylight Savings time.