There are 340 Engineers in Fairfax County, Virginia, serving a population of 1,142,004 people in an area of 391 square miles. There is 1 Engineer per 3,358 people, and 1 Engineer per 1 square miles.
In Virginia, Fairfax County is ranked 6th of 133 counties in Engineers per capita, and 3rd of 133 counties in Engineers per square mile.