'Fairfax County' definitions:
Fairfax -- U.S. County in Virginia
From: Gazetteer 2000
Name :
Fairfax -- U.S. County in Virginia
Population (2000) :
969749
Housing Units (2000) :
359411
Land area (2000) :
395.044718 sq. miles (1023.161078 sq. km)
Water area (2000) :
11.566728 sq. miles (29.957688 sq. km)
Total area (2000) :
406.611446 sq. miles (1053.118766 sq. km)
Located within :
Virginia (VA), FIPS 51
Location :
38.840845 N, 77.249565 W