Rileysburg is a small unincorporated community in Highland Township, Vermillion County, in the U.S. state of Indiana.

[2] The town is served by the post office in Covington in nearby Fountain County.

A post office was established at Rileysburg in 1887, and remained in operation until it was discontinued in 1934.

A CSX Transportation railway runs northwest through town into nearby Danville, Illinois.

Coal Branch Creek, which flows south through the county to the Vermilion River, has its head near Rileysburg.