Greensboro, MD -- U.S. town in Maryland Population (2000): 1632 Housing Units (2000): 674 Land area (2000): 0.665759 sq. miles (1.724309 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.665759 sq. miles (1.724309 sq. km) FIPS code: 35200 Located within: Maryland (MD), FIPS 24 Location: 38.975441 N, 75.806982 W ZIP Codes (1990): 21639 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Greensboro, MD Greensboro