The Dulles Corridor, a 23-mile stretch of land from the Washington Beltway to beyond Dulles International Airport, will be the center of phenomenal growth over the next 2 1/2 decades, creating from 200,000 to 300,000 new jobs overall and some 45,000 new households in Fairfax County alone, according to projections by George Mason University’s Center for Regional Analysis.

The corridor — which follows the Dulles Toll Road in Fairfax County past Dulles airport to Leesburg in Loudoun County — is expected to account for some 20 percent of the entire region’s growth over the next 25 years, according to CRA projections. The job growth alone is double that projected for the District of Columbia.