Fairfax County’s population growth since the 2010 federal census is in line with rates statewide and nationally, and the county retained its significant lead over all other Virginia jurisdictions in the number of residents.
The U.S. Census Bureau’s new estimates for population as of July 2018 peg Fairfax County’s total at 1,150,795. That’s an increase of 0.3 percent from the year before and a growth rate of 6.4 percent from the last census eight years earlier.
Fairfax’s growth rate was smaller than many localities that surround it: Arlington’s population grew 14.4 percent during the eight-year period, Falls Church saw its population grow 20.3 percent and Loudoun County’s population was up a whopping 30 percent, highest in the commonwealth.
Prince William County, the commonwealth’s second largest jurisdiction, saw a population gain of 16.4 percent since 2010 to 468,011.
On the other side of the coin, the city of Emporia, located near Interstate 95 not far from the North Carolina border, had the greatest population loss (down 13.5 percent) since 2010.
In the eight-year period since the 2010 census, Fairfax’s population growth compares to a 6.5-percent increase statewide (to about 8.5 million) and 6 percent nationally (to about 327.2 million).
Across the Washington metropolitan area – which includes the District of Columbia and adjacent areas of Virginia and Maryland – the July 2018 population of about 6.25 million was up 0.8 percent from a year before and up 10.9 percent from 2010.
The D.C. area currently ranks as the seventh largest metropolitan region in the nation, between Houston and Miami.