Round Lake, MN -- U.S. city in Minnesota Population (2000): 424 Housing Units (2000): 214 Land area (2000): 1.037135 sq. miles (2.686167 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.037135 sq. miles (2.686167 sq. km) FIPS code: 56086 Located within: Minnesota (MN), FIPS 27 Location: 43.539136 N, 95.467851 W ZIP Codes (1990): 56167 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Round Lake, MN Round Lake