Gayville, SD -- U.S. town in South Dakota Population (2000): 418 Housing Units (2000): 182 Land area (2000): 0.191631 sq. miles (0.496321 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.191631 sq. miles (0.496321 sq. km) FIPS code: 23900 Located within: South Dakota (SD), FIPS 46 Location: 42.889201 N, 97.173011 W ZIP Codes (1990): 57031 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Gayville, SD Gayville