Jonesville is a town in Union County, South Carolina, United States.

[6] According to the United States Census Bureau, the town has a total area of 1.0 square mile (2.6 km2), of which, 1.0 square mile (2.6 km2) of it is land and 0.97% is water.

As of the census[4] of 2000, there were 982 people, 444 households, and 264 families residing in the town.

There were 497 housing units at an average density of 488.7 per square mile (188.7/km2).

36.7% of all households were made up of individuals, and 20.7% had someone living alone who was 65 years of age or older.