Below is a list of Gaston SC zip codes. For your research we have also included Gaston Area Code, Time Zone, UTC and the local Lexington County FIPS Code. Each Gaston South Carolina zip code has a center Longitude / Latitude point (the Gaston center is -81.100997924805 / 33.81729888916). For your convenience we have also indicated if that zip code in Gaston observes Daylight Savings time.