US incomes by county

Inspired by the choropleth map challenge (mapping US unemployment rates by county)
http://blog.revolutionanalytics.com/2009/11/choropleth-map-r-challenge.html

I have created my own graphs showing reported income by county, according to the IRS 2007 dataset.

Yes, Teton County in Wyoming IS the winner. Think Jackson Hole
http://en.wikipedia.org/wiki/Teton_County,_Wyoming
Also note it is interest/dividend income, not wage income...