Cavour, SD -- U.S. town in South Dakota Population (2000): 141 Housing Units (2000): 71 Land area (2000): 0.417217 sq. miles (1.080586 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.417217 sq. miles (1.080586 sq. km) FIPS code: 10620 Located within: South Dakota (SD), FIPS 46 Location: 44.369465 N, 98.038222 W ZIP Codes (1990): 57324 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Cavour, SD Cavour