Welcome to Gwinnett - historically one of America's fastest-growing counties and now one of the nation's most diverse. Gwinnett County Government proudly supports our vibrantly connected community by delivering superior services.
Gwinnett County (/ ɡ w ɪ ˈ n ɛ t / gwih-NET) is located in the north central portion of the U.S. state of Georgia. It forms part of the Atlanta metropolitan area . In 2020 , the population was 957,062, making it the second-most populous county in Georgia (after Fulton County ). 
Gwinnett County was established in 1818. Named for Button Gwinnett, signer of the Declaration of Independence, our county has a long history of fiscally conservative government. Home to more than a dozen cities, Gwinnett County provides responsive local control across 437 square miles.
Gwinnett County, Georgia. Population Estimates, July 1, 2022, (V2022) . 975,353. People. Population. Population Estimates, July 1, 2022, (V2022) . 975,353.
807,979 2021 Population 964,546 Population Change + 19.4 % Data Updated July 2022 National / Georgia / Gwinnett County Year 2010 Year to Year 2021 Year How has the population changed in Gwinnett County? County changes over time Over the past 50 years, some counties have merged or split, and the resulting data was redistributed to other counties.