Welcome to Southern Aroostook! The southern Aroostook county region includes towns in the Houlton area, including Houlton, Hodgdon, Linneus, New Limerick, Littleton, and others. Houlton Aerial View “Houlton is the county seat for Aroostook County and is nicknamed the “Shiretown”. Houlton was settled in 1807 by Aaron Putnam and Joseph Houlton.