Byrdstown is a town in Pickett County, Tennessee, United States. The population was 903 at the 2000 census. It is the county seat of Pickett County. The town is situated on the Highland Rim a few miles east of Dale Hollow Lake. Byrdstown is traversed by Tennessee State Route 325, which travels east-to-west across the northern part of the county. Recently, the town has grown westward to TN-325's junction with Tennessee State Route 111. According to the United States Census Bureau, the town has a total area of 1.5 square miles (3.9 km2), all of it land. The Byrdstown area is drained by the Wolf River.