Germantown is a historic unincorporated rural community in Fauquier County, Virginia, United States. It is located in and around current-day C. M. Crockett Park, which contains the popular local fishing destination of Germantown Lake. Chief Justice John Marshall was born in Germantown. Archeological sites relating to the settlement are listed on the Nationa…Germantown is a historic unincorporated rural community in Fauquier County, Virginia, United States. It is located in and around current-day C. M. Crockett Park, which contains the popular local fishing destination of Germantown Lake. Chief Justice John Marshall was born in Germantown. Archeological sites relating to the settlement are listed on the National Register of Historic Places.