Gwinnett County is a suburban county of Atlanta in the north central portion of Georgia. In 2020, the population was 957,062, making it the second-most populous county in Georgia (after Fulton County). Its county seat is Lawrenceville. The county is named for Button Gwinnett, one of the signatories of the Declaration of Independence.
Gwinnett County is included in the Atlanta-Sandy Springs-Roswell, GA Metropolitan Statistical Area. It is located about 10 miles northeast of Atlanta's city limits.