Tennessee's most populous counties, listed in order from higher to lower population, are the counties of Shelby, Davidson, Knox, Hamilton, Rutherford and Williamson. No other county in Tennessee has a population that exceeds 200,000, as of 2015.
Shelby County is located in the southwest corner of the state, led by the county seat Memphis, the state's most populous city. Shelby County has a population of 927,644, trailed closely by Davidson County with 626,681. Davidson County's county seat is Tennessee's capital and second-largest city by population, Nashville.
Tennessee's smallest counties by population are Van Buren County and Pickett County, with populations of 5,548 and 5,077, respectively.