Arlington is a home rule-class city in Carlisle County, Kentucky, in the United States. The population was 324 at the 2010 census, a drop from 395 in 2000. It was formally incorporated by the state assembly in 1876.
Arlington was founded in 1873 as a stop along a predecessor line of the Illinois Central Railroad. The new city was initially known as "Neville" after Robert Buckner Neville, who owned the land on which it was established. Several developers wanted to rename the city "Holtsville" after local store owner Tom Holt. To prevent a dispute, the railroad settled on the name "Arlington" after Arlington Heights, Virginia, the hometown of a railroad official. The new city was incorporated in 1876.
When Carlisle County was created in 1886, Arlington was initially selected as the seat of the new county. The nearby city of Bardwell challenged this, however, noting its more central location within the county. County officials agreed, and moved the seat to Bardwell shortly afterward.
Arlington is located in southern Carlisle County at 36°47′29″N 89°00′41″W. U.S. Route 51 and Kentucky Route 80 intersect in the city.