Frankfort, MI -- U.S. city in Michigan Population (2000): 1513 Housing Units (2000): 873 Land area (2000): 1.395260 sq. miles (3.613706 sq. km) Water area (2000): 0.191975 sq. miles (0.497213 sq. km) Total area (2000): 1.587235 sq. miles (4.110919 sq. km) FIPS code: 30260 Located within: Michigan (MI), FIPS 26 Location: 44.633701 N, 86.234938 W ZIP Codes (1990): 49635 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Frankfort, MI Frankfort