South Connellsville is a borough in Fayette County, Pennsylvania, United States.

[5] South Connellsville is located in northeastern Fayette County at 39°59′53″N 79°35′10″W / 39.99806°N 79.58611°W / 39.99806; -79.58611 (39.998007, −79.586127).

[6] It is bordered to the north by the city of Connellsville and to the west by the Youghiogheny River.

24.7% of all households were made up of individuals, and 10.9% had someone living alone who was 65 years of age or older.

The South Connellsville Municipal Authority has overseen sewerage enforcement services, having operated the public sewer system since 1951.