Below is a list of Gwinnett County GA zip codes. For your research we have also included Gwinnett County Area Code, Time Zone, UTC and the local County FIPS Code. Each Gwinnett County Georgia zip code has a center Longitude / Latitude point (the Gwinnett County center is -84.086097717285 / 33.964000701904). For your convenience we have also indicated if that zip code in Gwinnett County observes Daylight Savings time.