Algonac, MI -- U.S. city in Michigan Population (2000): 4613 Housing Units (2000): 2014 Land area (2000): 1.401423 sq. miles (3.629669 sq. km) Water area (2000): 0.001248 sq. miles (0.003233 sq. km) Total area (2000): 1.402671 sq. miles (3.632902 sq. km) FIPS code: 01180 Located within: Michigan (MI), FIPS 26 Location: 42.621760 N, 82.533502 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Algonac, MI Algonac