St. Charles

(Maryland)

St. Charles is a planned community in Charles County, Maryland, United States. It is 22 miles (35 km) south-southeast of Washington, D.C., 24 miles (39 km) from northern Virginia and immediately south of Waldorf, which is the mailing address.. At the 2000 census, it was delineated as a census-designated place (CDP), with a population of 33,379. It was included in the Waldorf CDP for the 2010 census.