Summit, SD -- U.S. town in South Dakota Population (2000): 281 Housing Units (2000): 144 Land area (2000): 0.376049 sq. miles (0.973963 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.376049 sq. miles (0.973963 sq. km) FIPS code: 62220 Located within: South Dakota (SD), FIPS 46 Location: 45.303743 N, 97.037106 W ZIP Codes (1990): 57266 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Summit, SD Summit