South Hills is a census-designated place (CDP) in Jefferson County, Montana, United States.

[3] South Hills is in northern Jefferson County.

According to the U.S. Census Bureau, the South Hills CDP has an area of 5.9 square miles (15.2 km2), all land.

[3] The community is drained by east-flowing tributaries of Prickly Pear Creek, which flows north to the Missouri River.

This Jefferson County, Montana state location article is a stub.