In 1787, the fledgling United States defined the Northwest Territory, which included the area of present-day Indiana.Starting in 1794, Native American titles to Indiana lands were extinguished by usurpation, purchase, or war and treaty.White people had been living in the future Carroll County area since 1824[5] and their numbers increased rapidly in the next few years.The exterior is understated, but the interior is surprisingly elaborate, including a stained glass dome over a mosaic tile floor.Wildcat Creek drains the south part of Carroll County, flowing westward into Tippecanoe to merge with the Wabash there.[8] The highest point on the terrain (830 feet/250 meters ASL) is the county's SE corner.The commissioners execute acts legislated by the council, collect revenue, and manage the county government.The judge on the court is elected to a term of four years and must be a member of the Indiana Bar Association.[13] Carroll County is part of Indiana's 4th congressional district and is represented by Jim Baird in the United States Congress.