Below is a list of Saint Johns OH zip codes. For your research we have also included Saint Johns Area Code, Time Zone, UTC and the local Auglaize County FIPS Code. Each Saint Johns Ohio zip code has a center Longitude / Latitude point (the Saint Johns center is -84.084297180176 / 40.556499481201). For your convenience we have also indicated if that zip code in Saint Johns observes Daylight Savings time.