Rosemont, MD -- U.S. village in Maryland Population (2000): 273 Housing Units (2000): 106 Land area (2000): 0.559032 sq. miles (1.447886 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.559032 sq. miles (1.447886 sq. km) FIPS code: 68600 Located within: Maryland (MD), FIPS 24 Location: 39.329608 N, 77.618522 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Rosemont, MD Rosemont