Arcadia 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 2,634.Arcadia is located at 3457?40?N 8159?35?W? / ?34.96111N 81.99306W? / 34.96111; -81.99306. These coordinates place the CDP to the west of the City of Spartanburg.According to the United States Census Bureau, the CDP has a total land area of 1.960 square miles and a total water area of 0.005 square mile.