Washington a capital of brainiacs

Arlington ranks at top of class, with 70 percent earning college degrees Arlington is home to more brainpower on average than any other county in the nation, with seven of every 10 residents earning college degrees. That achievement distinguishes the small pocket of government workers and defense contractors from the rest of a region ranked as the most educated nationwide.

New census data show that 70 percent of Arlingtonians sport college diplomas, well eclipsing the next-closest area, Howard County, where about 60 percent have at least a bachelor’s degree.