Pelzer, IndianaPelzer is an unincorporated community in Boon Township, Warrick County, in the U.S. state of Indiana.HistoryA post office was established at Pelzer in 1898, and remained in operation until 1900. The community bears the name of a family of settlers. Frederick William Pelzer, a local Warrick County farmer, immigrated from Germany in 1860.GeographyPelzer is located at.