Fairfax County / Prince William County

Fairfax County

Area 417 Square Miles

Formed in 1742 from Prince William and Loudoun, and named for Lord Fairfax, proprietor of the Northern Neck. Mount Vernon, George Washington’s home, is in this county.

Prince William County

Area 345 Square Miles

Formed in 1730 from Stafford ...

Fairfax County / Prince William County

Fairfax County. Area 417 square miles. Formed in 1742 from Price William and Loudoun, and named for Lord Fairfax, Proprietor of the Northern Neck. Mount Vernon, George Washington's home, is in this county.

Prince William County Area 345 square miles. Formed ...