Below is a list of Cynthiana OH zip codes. For your research we have also included Cynthiana Area Code, Time Zone, UTC and the local Pike County FIPS Code. Each Cynthiana Ohio zip code has a center Longitude / Latitude point (the Cynthiana center is -83.34839630127 / 39.173801422119). For your convenience we have also indicated if that zip code in Cynthiana observes Daylight Savings time.