A- Aberdeen, Aberdeen Proving Ground, Andrews Air Force Base, Annapolis
B- Baltimore, Bel Air, Beltsville, Berlin, Bethesda, Bowie
C- California, Cambridge, Catonsville, Centreville, Chestertown, Chevy Chase, College Park, Columbia
D- Dameron, Dundalk
E- Easton, Elkridge, Elkton, Ellicott City, Emmitsburg
F- Fort George G Meade, Frederick
G- Gaithersburg, Germantown, Glenwood
H- Hagerstown, Havre De Grace, Hebron, Hunt Valley, Hyattsville
I- Indian Head
L- La Plata, Lanham, Leonardtown, Lexington Park, Lutherville Timonium
M- Mc Henry, Millersville
N- New Windsor, Newark, North East, Nottingham
O- Oakland, Owings Mills
P- Patuxent River, Pikesville, Pomfret, Port Republic
Q- Quantico, Queenstown
R- Ridgely, Rising Sun, Rockville, Rosedale
S- Saint Marys City, Salisbury, Severn, Silver Spring, Snow Hill, Solomons, Stevenson, Suitland
T- Takoma Park, Towson
U- Upper Marlboro
W- Waldorf, Westminster, Williamsport, Windsor Mill