Maryland ZIP Codes by County

Also see: Maryland Area Codes by County

ZIP Codes for Cities & Towns - Sorted by County

• -- Select 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