I just noticed this cool tool by Alex Perez on Data.gov that maps and charts American obesity by county. His interactive uses proportional symbols and colors to visualizes differences between, with larger bubble and darker reds representing increased obesity rates. Here’s Louisiana:

 

Selecting a county (or, in this case, a parish) highlights its corresponding distribution on scatter plots that compare the proportion of residents who smoke, or eat few vegetables, or don’t exercise. 

As you can see, Moorehouse Parish has a high obesity rate, in part because its residents aren’t lives that are as healthy as others: 

Data.gov has posted other interactives like this in its developer showcase. 

Made with Tableau Public