Maryland and Virginia counties occupy seven of the 10 richest counties in America, Newsweek reports.
Loudoun County in Virginia tops the list for the third straight year, with a median household income of more than $114,000. Only 16 percent of Loudoun households make less than $200,000 a year. The county also boasts an unemployment rate of only five percent.
Virginia has two other counties on the list, and Maryland has four.
Here's the complete top 10.
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