Below is a list of Riddleton TN zip codes. For your research we have also included Riddleton Area Code, Time Zone, UTC and the local Smith County FIPS Code. Each Riddleton Tennessee zip code has a center Longitude / Latitude point (the Riddleton center is -86.017303466797 / 36.322299957275). For your convenience we have also indicated if that zip code in Riddleton observes Daylight Savings time.