The Houlton Building Complex consists of three buildings: The Sheriffs Office Building, The Aroostook County Jail and the Aroostook County Superior and District Court Building.
Located on the corner of Military and School Streets, houses Aroostook County Law Enforcement Operations, Probation and Parole, the Maine Juvenile Intake Office, U.S. Army Recruitment Office, Maine Pretrial and the University of Maine Cooperative Extension.
Located on the corner of Military and Broadway Streets and houses the Correction Division of the Aroostook County Sheriff's Department. The Jail Administrator and Jail Nurse also maintain offices in this building.
Located on the corner of Military and Court Streets, is listed in the Register of National Historic Buildings. The Maine Superior and District Courts and their offices; Aroostook County Registry of Deeds (South); Registry of Probate and District Attorney's Office are all located in this building.