Ragsdale is an unincorporated community and census-designated place in Washington Township, Knox County, Indiana. As of the 2010 census it had a population of 129. Ragsdale is located in eastern Knox County at 38°44′45″N 87°19′30″W / 38.74583°N 87.32500°W. It is 13 miles northeast of Vincennes, the county seat, and the same distance northwest of W…Ragsdale is an unincorporated community and census-designated place in Washington Township, Knox County, Indiana. As of the 2010 census it had a population of 129. Ragsdale is located in eastern Knox County at 38°44′45″N 87°19′30″W / 38.74583°N 87.32500°W. It is 13 miles northeast of Vincennes, the county seat, and the same distance northwest of Washington.