'Frederick County, VA' definitions:

Frederick -- U.S. County in Virginia

From: Gazetteer 2000
Name :
Frederick -- U.S. County in Virginia
Population (2000) :
59209
Housing Units (2000) :
23319
Land area (2000) :
414.626136 sq. miles (1073.876718 sq. km)
Water area (2000) :
0.995932 sq. miles (2.579453 sq. km)
Total area (2000) :
415.622068 sq. miles (1076.456171 sq. km)
Located within :
Virginia (VA), FIPS 51
Location :
39.192751 N, 78.244616 W