Below is a list of Gallatin TN zip codes. For your research we have also included Gallatin Area Code, Time Zone, UTC and the local Sumner County FIPS Code. Each Gallatin Tennessee zip code has a center Longitude / Latitude point (the Gallatin center is -86.452301025391 / 36.380100250244). For your convenience we have also indicated if that zip code in Gallatin observes Daylight Savings time.