Soso, MS -- U.S. town in Mississippi Population (2000): 379 Housing Units (2000): 174 Land area (2000): 1.997583 sq. miles (5.173716 sq. km) Water area (2000): 0.005898 sq. miles (0.015275 sq. km) Total area (2000): 2.003481 sq. miles (5.188991 sq. km) FIPS code: 69160 Located within: Mississippi (MS), FIPS 28 Location: 31.754465 N, 89.274120 W ZIP Codes (1990): 39480 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Soso, MS Soso