Barrow County is a county located in the north central portion of the U.S. state of Georgia. As of the 2020 census, the population was 83,505. The county seat is Winder. Barrow County is included in the Atlanta-Sandy Springs-Roswell metropolitan statistical area.

Winder is a city and the county seat of Barrow County, Georgia, United States. It is located east of Atlanta and is part of the Atlanta metropolitan area. The population was 18,338 at the 2020 census.