Source: http://labs.slate.com/articles/cigarette-map/
Author: Chris Wilson

Fewer than 13 percent of Americans now smoke cigarettes every day. While this represents a dramatic decline from the Mad Men-era of ubiquitous ash trays, the drop in smokers isn’t happening everywhere at the same rate, and it isn’t necessarily happening among the people you’d expect. Slate decided to map the latest data about cigarette smoking by state and county, and the trends it reveals are fascinating. In most of the counties around the border of Kentucky and West Virginia, for example, as much as 40 percent of the population regularly lights up.

This map shows data from both counties and states, using figures from an annual nationwide survey of more than 400,000 people. The state-by-state map also breaks out the numbers by age group, and by whether people smoke regularly or occasionally. Click the tabs in the upper right corner to toggle between the two different maps. You can access the interactive map here.