Wash DC winter Shutterstock
Washington, D.C. Shutterstock.com

Six of the richest U.S. counties are within commuting distance of the federal government's headquarters, according to an analysis of Census Bureau data by The Atlantic.

Meanwhile, the poorest 10 U.S. counties are far from Washington, D.C., the Atlantic reported Tuesday. The figures are in median household income dollars.

where rich people live
The 10 richest and poorest counties in the U.S. Atlantic.com, Census Bureau

Another way of looking at the richest American cluster of counties that's around Washington, D.C., is to notice that the nation's wealthiest communities encircle the capitol. (Some rich counties, like Falls Church City, which is No. 1, are too small to appear easily.)

rich residences graphic
13 of the richest 30 counties form a continuous circle around Washington, D.C. Atlantic.com, Census Bureau

(Note: Daylight Washington, D.C. photo by Shutterstock.com.)