Below is a list of Bluffton OH zip codes. For your research we have also included Bluffton Area Code, Time Zone, UTC and the local Allen County FIPS Code. Each Bluffton Ohio zip code has a center Longitude / Latitude point (the Bluffton center is -83.894401550293 / 40.891300201416). For your convenience we have also indicated if that zip code in Bluffton observes Daylight Savings time.