ZIP Codes by

Also see: Maryland Area Codes by County

ZIP Codes for Cities & Towns - Sorted by County

Allegany
Anne Arundel
Baltimore
Baltimore City
Calvert
Caroline

Carroll
Cecil
Charles
Dorchester
Frederick
Garrett

Harford
Howard
Kent
Montgomery
Prince Georges
Queen Annes

Saint Marys
Somerset
Talbot
Washington
Wicomico
Worcester