Houlton is a town in Aroostook County, Maine, on the United States – Canada border, located at 46.1256°N 67.8398°W / 46.1256; -67.8398. As of the 2010 census, the town population was 6,123. It is perhaps best known as being at the northern terminus of Interstate 95 and for being the birthplace of Samantha Smith, a goodwill ambassador as a child during the Cold War.