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There are 3,144 counties and county-equivalents in the United States. The source of the data is the U.S. Census Bureau and the data is current as of the indicated year. Independent cities are considered county-equivalent by the Census Bureau.
Summary[edit]
Before the American Civil War, the wealthiest counties were primarily located in Louisiana and Mississippi, because of the high number of enslaved people, who were not included in the population.[1]
Loudoun County, Virginia, a suburb of Washington, D.C., is the highest-income county by median household income. Another Washington, D.C. suburb, Arlington County, Virginia, ranked as the highest-income county by median family income as of 2013.[2]
Median household income[edit]
2020 census[edit]
The chart below depicts the 100 highest income counties in the United States by median household income according to the 2020 United States census.[3] Virginia has the most counties in the top 100 with 18. It is followed by California with 11; Maryland with 10; New Jersey with nine; New York and Texas with six each; Illinois with five; Colorado, Massachusetts, and Minnesota with four each; Ohio and Pennsylvania with three each; Georgia, Indiana, Utah, and Washington with two each; and Connecticut, Washington, D.C., Iowa, Kansas, Kentucky, New Hampshire, New Mexico, Tennessee, and Wisconsin with one each.
Per capita income[edit]
2020 Census[edit]
Highest-income counties and places by state[edit]
For more detailed lists of rankings of counties and places in the individual states, see the following pages:
- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
See also[edit]
- List of United States counties by per capita income
- List of lowest-income counties in the United States
Notes and references[edit]
- ^ Frasier, Steve (2005). Ruling America. Harvard University Press. ISBN 9780674017474.
- ^ "District of Columbia region boasts four richest counties in U.S." American City Business Journals.
- ^ "QuickFacts". United States Census Bureau. Retrieved September 7, 2022.