Walker County is a county located in the northwestern part of the U.S. state of Georgia. As of the 2020 census, the population was 67,654, down from 68,756 in 2010. The county seat is LaFayette. The county was created on December 18, 1833, from land formerly belonging to the Cherokee Indian Nation.

The Chattanooga, TN-GA metropolitan statistical area, as defined by the United States Office of Management and Budget, is an area consisting of six counties – three in southeast Tennessee and three in northwest Georgia – anchored by the city of Chattanooga. As of the 2020 census, the Chattanooga metropolitan area had a population of 562,647. This metropolitan area traverses two time zones.