Kentucky and West Virginia have topped the list of highest smoking rates in the country, according to a recent Gallup poll.
Roughly one in three residents in these states are smokers. Nationally, one in five Americans in 2013 said they smoke.
Other high-smoking states include Ohio, Indiana, Mississippi, and Missouri.
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States with comprehensive smoking bans tend to have lower smoking rates. Nationally, the smoking rate fell to 19.7 percent in 2013 from 21.1 percent in 2008.
The lowest percentage of smokers was in Utah, same as it did in 2008. The lowest rates are in Northeast and the West, while the highest rates are for the most part located in the Midwest and the South.
States such as Alaska, Nevada, North Dakota and Rhode Island have had the most improvement in smoking rates since 2008.
The results are based on interviews with more than 178,000 Americans in all 50 states on Jan. 2- Dec. 29, 2013.