Below is a list of Southside TN zip codes. For your research we have also included Southside Area Code, Time Zone, UTC and the local Montgomery County FIPS Code. Each Southside Tennessee zip code has a center Longitude / Latitude point (the Southside center is -88.350997924805 / 35.045501708984). For your convenience we have also indicated if that zip code in Southside observes Daylight Savings time.