Below is a list of Grayson GA zip codes. For your research we have also included Grayson Area Code, Time Zone, UTC and the local Gwinnett County FIPS Code. Each Grayson Georgia zip code has a center Longitude / Latitude point (the Grayson center is -83.960098266602 / 33.892200469971). For your convenience we have also indicated if that zip code in Grayson observes Daylight Savings time.