There's more than one place called '''Fairfax''':
Fairfax (California) - a town in Marin County, California
Fairfax (Iowa)
Fairfax (Minnesota)
Fairfax (Missouri)
Fairfax (Ohio)
Fairfax (Oklahoma)
Fairfax (South Carolina)
Fairfax (South Dakota)
Fairfax (Vermont)
Fairfax (Virginia) - a city in Fairfax County, Virginia
Fairfax (West Virginia)
Fairfax County - in Virginia