21648

from U.S. Gazetteer Zip Code Tabulation Areas (2000)

21648 -- U.S. ZIP code
   Population (2000):    338
   Housing Units (2000): 161
   Land area (2000):     18.260849 sq. miles (47.295379 sq. km)
   Water area (2000):    0.124668 sq. miles (0.322889 sq. km)
   Total area (2000):    18.385517 sq. miles (47.618268 sq. km)
   Located within:       Maryland (MD)
   Location:             38.485297 N, 76.240571 W