Below is a list of Thorntown IN zip codes. For your research we have also included Thorntown Area Code, Time Zone, UTC and the local Boone County FIPS Code. Each Thorntown Indiana zip code has a center Longitude / Latitude point (the Thorntown center is -86.609497070312 / 40.129398345947). For your convenience we have also indicated if that zip code in Thorntown observes Daylight Savings time.