How much of that wealth is concentrated around Washington D.C.?
Here’s the Census Bureau list of the counties with the highest median incomes:
Falls Church city, Va. $121,250
Loudoun County, Va. $118,934
Los Alamos County, N.M. $112,115
Howard County, Md. $108,234
Fairfax County, Va., $106,690
Hunterdon County, N.J. $103,301
Arlington County, Va. $99,255
Douglas County, Colo. $98,426
Stafford County, Va. $95,927
Somerset County, N.J. $95,574
Morris County, N.J. $95,236
Montgomery County, Md. $94,365
Prince William County, Va. $93,011