Prince Frederick, MD
Prince Frederick is a census-designated place (CDP) in Calvert County, Maryland, United States, not to be confused with the incorporated, and much larger, city of Frederick some 70 miles (110 km) to the northwest in Frederick County. As of the 2010 Census, the population of Prince Frederick was 2,538. It is the county seat of Calvert County
Prince Frederick is located at 38°32′55″N 76°35′19″W / 38.54861°N 76.58861°W / 38.54861; -76.58861 (38.548720, -76.588748).
According to the United States Census Bureau, the CDP has a total area of 3.3 square miles (8.4 km²), all of it land.