The richest counties in the U.S. are found in the places one would expect. The metro areas of Washington, D.C. dominate the list, and wealthy counties from around the country are represented, including those in Colorado, Ohio and Tennessee.
Metro areas in New York City and the San Francisco Bay Area are notably absent. Take a look at the 15 Most Expensive Places to Live to see the off-the-charts cost of living in these areas. That factor may have kept them off the list.
