John M Horn (Postmaster)
john.m.horn@usps.gov
10383 Southern Maryland Blvd
Dunkirk, MD 20754
Dunkirk, MD 20754
The Dunkirk Post Office is located in the state of Maryland within Calvert County. This location serves 6,951 Dunkirk residents with a median income of $107,577. It's estimated that approximately 11,095 packages pass through this post office each year.