The five counties in the U.S. with the highest median household incomes are surrounding the Washington, D.C., metro area.

The 2013-2017 American Community Survey found in its report released Thursday that the five-year estimates shows Loudoun County, Va.; Fairfax County, Va.; Howard County, Md.; Falls Church City, Va.; and Arlington County, Va., are the top five highest counties in terms of household incomes, according to the U.S. Census Bureau.



Highest counties by median household income (2013-2017):

-Loudoun County, Va.

-Fairfax County, Va.

-Howard County, Md.

-Falls Church City, Va.

-Arlington County, Va. https://t.co/1AA3U00xBA #ACSdata — U.S. Census Bureau (@uscensusbureau) December 6, 2018

Most of the five counties fall immediately outside of the D.C. city limits, and all are considered commuter areas in relation to the nation’s capital, where people who work in the city take residence.

The counties also all fell in the category of $75,000 median household income or more.



The report also found that of the 3,142 counties in the U.S., household income declined in 222 counties and increased in 521 counties compared to the 2008-2012 estimations.

Three of the five lowest ranked counties based on household income are in Kentucky.

McCreary County, Ky.; Holmes County, Miss.; Sumter County, Ala.; Bell County, Ky.; and Harlan County, Ky., were the five lowest counties based on median household income.