John Brown

Top 10 Richest Counties In The USA

Top 10

The list is based on Median Household Income (MHI) in United States.

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10. Nassau County (New York) MHI: $120,036

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09. Douglas County (Colorado) MHI: $121,393

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08. Marin County (California) MHI: $121,671

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07. Arlington County (Virginia) MHI: $122,604

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06. Howard County (Maryland) MHI: $124,042

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05. Fairfax County (Virginia) MHI: $127,866

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04. San Mateo County (California) MHI: $128,091

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03. Santa Clara County (California) MHI: $130,890

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02. Falls Church (Virginia) MHI: $146,922

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01. Loudoun County (Virginia) MHI: $147,111

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