Below is a list of Johnstown OH zip codes. For your research we have also included Johnstown Area Code, Time Zone, UTC and the local Licking County FIPS Code. Each Johnstown Ohio zip code has a center Longitude / Latitude point (the Johnstown center is -82.690803527832 / 40.150901794434). For your convenience we have also indicated if that zip code in Johnstown observes Daylight Savings time.