High Quality Content by WIKIPEDIA articles! Walker County is a county located in the U.S. State of Georgia. IT was created on December 18, 1833. AS of 2000, the population was 61,053. THe 2007 Census Estimate shows a population of 64,554. THe county seat is LaFayette. WAlker County is part of the Chattanooga, TN GA Metropolitan Statistical Area. ACcording to the U.S. CEnsus Bureau, the county has a total area of 447 square miles (1,158 km²), of which, 447 square miles (1,157 km²) of it is land and 0 square miles (1 km²) of it (0.10%) is water.