Glendale is a Census-designated place located in Spartanburg County in the U.S. State of South Carolina. According to the 2010 United States Census, the population was 307.A post office called Glendale has been in operation since 1878. The community's chief industry was a cotton mill.The Bivings-Converse House was listed on the National Register of Historic Places in 1995.Glendale is located at 34°56′42″N 81°50′11″W / 34.94500°N 81.83639°W / 34.94500; -81.83639. These coordinates place the CDP to the east of the City of Spartanburg.According to the United States Census Bureau, the CDP has a total area of 0.212  square miles, all land.