Dunkirk is a census-designated place (CDP) in Calvert County, Maryland, United States.

[3] Its western border is the Patuxent River, which is also the Prince George's County line.

Maryland Route 4 passes through the center of Dunkirk, leading northwest 10 miles (16 km) to Upper Marlboro and south 14 miles (23 km) to Prince Frederick, the Calvert County seat.

[2] The climate in this area is characterized by hot, humid summers and generally mild to cool winters.

None of the families and 0.2% of the population were living below the poverty line, including no under eighteens and none of those over 64.