Saline City, IndianaSaline City is an unincorporated community in Sugar Ridge Township, Clay County, Indiana. It is part of the Terre Haute Metropolitan Statistical Area.HistorySaline City had its start by the building of the railroad through that territory. A post office was established at Saline City in 1872, and remained in operation until it was discontinued in 1951. Saline likely refers to a mineral lick.GeographySaline City is located at.DemographicsThe United States Census Bureau defined Saline City as a census designated place in the 2022 American Community Survey.