Salem is a city in Washington Township, Washington County, in the U.S. state of Indiana. Salem serves as the county seat. The population was 6,319 at the 2010 census.
Salem was laid out and platted in 1814. It was named for Salem, North Carolina, the hometown of one of the city founders.
The Salem post office has been in operation since 1816.
In June 1863, the Confederate cavalry under John Hunt Morgan had departed Tennessee on what would later become known as Morgan's Raid. Traveling through Tennessee and into Kentucky, Morgan eventually crossed into Indiana; he reached Salem on July 10, 1863, coming north from Corydon. Upon entering Salem at approximately 9 a.m., Morgan immediately took possession of the town and placed guards over the stores and streets. The cavalrymen burned the large, brick railroad depot, along with all the train cars on the track and the railroad bridges on each side of the town. Morgan demanded taxes from the two flour mills that belonged to DePauw and Knight, and from the Allen Wollen Mill. Morgan's men looted stores and took about $500 from the area before departing about 3 p.m.
Of the brief action at Salem, Col.