what county jonesville, sc
Jonesville, SC. Sponsored Topics. Jonesville is a town in Union County, South Carolina, United States. The population was 911 at the 2010 United States Census. Jonesville is located at 34Â°50â²8â³N 81Â°40â²54â³W / 34.83556Â°N 81.68167Â°W / 34.83556; -81.68167 (34.835689, -81.681712).