(AP Photo)

(CNSNews.com) - Five of the nation's Top Ten wealthiest counties--when measured by median household income in 2014--are suburbs of Washington, D.C.; and the three wealthiest are all in suburban Virginia, according to data released today by the Census Bureau.

Falls Church, Va.--an independent city which the Census counts as a county--led the nation with a median household income of $125,635 in 2014.

Loudon County, Va., was second with a median household income of $122,641.

Fairfax County, Va., was third with a median household income of $110,507.

The two other Washington, D.C., suburbs that made it into the Top Ten were Arlington County, Va., which finished sixth with a median household income of $107,143; and Howard County, Md., which finished seventh with a median household income of $106,871.

The only two non-Washington, D.C., suburbs to make it into the top seven were Los Alamos County, N.M., which had the fourth highest median household income ($108,477) and Douglas County, Colo., which had the fifth highest median household income ($107,250.)

Also in the Top Ten were Hunterdon County, N.J, which placed eighth with a median household income of $103,876; San Mateo County, Calif., which placed ninth with a median household income of $100,806; and Morris County, N.J., which placed tenth with a median household income of $100,511.

Counties in the Virginia suburbs outside of Washington, D.C., have dominated the top of the Census Bureau’s list of wealthiest counties for years.

In 2013, Loudoun was Number 1, Falls Church was Number 2, Fairfax was Number 4 and Howard was Number 5. That year, Los Alamos County, New Mexico, at Number 3, was the only non-D.C. suburb to make it into the Top Five.

In 2012 the same five counties made the Top Five. However, that year, Falls Church was Number 1, Loudoun was Number 2, Los Alamos was Number 3, Howard was Number 4 and Fairfax was Number 5.