Below is a list of Martinsville OH zip codes. For your research we have also included Martinsville Area Code, Time Zone, UTC and the local Clinton County FIPS Code. Each Martinsville Ohio zip code has a center Longitude / Latitude point (the Martinsville center is -83.814102172852 / 39.32389831543). For your convenience we have also indicated if that zip code in Martinsville observes Daylight Savings time.