Clarksville is a city in and the county seat of Montgomery County, Tennessee, and the fifth-largest city in the state behind Memphis, Nashville, Knoxville, and Chattanooga, respectively. The city had a population of 132,957 at the 2010 census, and an estimated population of 146,806 in 2014.
It is the principal central city of the Clarksville, TN-KY metropolitan statistical area, which consists of Montgomery and Stewart counties in Tennessee; and Christian and Trigg counties in Kentucky.
The city was incorporated in 1785 as Tennessee's first incorporated city, and named for General George Rogers Clark, frontier fighter and Revolutionary War hero, and brother of William Clark of the Lewis and Clark Expedition.
Clarksville is the home of Austin Peay State University; The Leaf-Chronicle, the oldest newspaper in Tennessee; and neighbor to the Fort Campbell, United States Army base. Site of the 101st Airborne Division (Air Assault), Fort Campbell is located approximately ten miles (16 km) from downtown Clarksville, straddling the Tennessee-Kentucky state line. It is officially Fort Campbell, Kentucky as the base U.S. Post Office is on the Kentucky side of the post. The majority of the acreage of Fort Campbell is within the state of Tennessee.