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Post Offices by County

CALVERT COUNTY, MARYLAND

ZIP Code Post Office Date Established Date Discontinued
20610 BARSTOW 06/28/1893
20615 BROOMES ISLAND 06/29/1889
20732 CHESAPEAKE BEACH
20629 DOWELL 12/22/1926
20754 DUNKIRK
20639 HUNTINGTOWN
20657 LUSBY 06/14/1870
MACKALL 02/29/1876 04/30/1956
20714 NORTH BEACH
20736 OWINGS
20676 PORT REPUBLIC 09/09/1836
20678 PRINCE FREDERICK 02/28/1824
20685 SAINT LEONARD 04/06/1796
20688 SOLOMONS
20689 SUNDERLAND 08/13/1856

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