The Tennessee counties with the highest median household income in 2011 are concentrated around Nashville in Middle Tennessee.

1. Williamson County, $86,962

2. Wilson County, $59,987

3. Sumner County, $52,115

4. Robertson County, $47,785

5. Montgomery County, $47,154

Hamilton County's median household income was $41,769, while Bradley County's median household income was $37,149. Annual data for such income figures is available only for the 20 biggest counties in Tennessee.

Source: U.S. Bureau of the Census