Lakeside, MO -- U.S. city in Missouri Population (2000): 37 Housing Units (2000): 15 Land area (2000): 0.349018 sq. miles (0.903953 sq. km) Water area (2000): 0.306162 sq. miles (0.792957 sq. km) Total area (2000): 0.655180 sq. miles (1.696910 sq. km) FIPS code: 40142 Located within: Missouri (MO), FIPS 29 Location: 38.201533 N, 92.621012 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Lakeside, MO Lakeside