Brattleboro (US pronunciation: /ˈbrætəlˌbɜroʊ/, UK /ˈbrætəlbᵊrə/), originally Brattleborough, is a town in Windham County, Vermont, United States, located in the southeast corner of the state, along the state line with New Hampshire. The population was 12,049 at the 2010 census. It is the most populous municipality along Vermont's eastern border, the fourth largest town in the state (trailing Essex, Colchester, and Bennington), and the seventh largest municipality in Vermont overall when the cities of Burlington, South Burlington and Rutland are included.