Aroostook County is a county located in the U.S. state of Maine. In 2010, its population was 71,870. Known locally in Maine simply as "The County," it is the largest American county by land area east of the Mississippi River (St. Louis County, Minnesota is larger by total area). Its seat is Houlton. As Maine's northernmost county, its northernmost village, Estcourt Station, is therefore also the northernmost community in New England and in the contiguous U.S. east of the Great Lakes. Aroostook County is known for its potato crops, as well as its Acadian culture. In the northernmost region of the county, which borders Madawaska County, New Brunswick, many of the residents are bilingual (English and French). The county is also an emerging hub for wind power.