Adult Obesity Rates

Updated September 2021: According to the most recent Behavioral Risk Factor Surveillance System (BRFSS) data, adult obesity rates now exceed 35% in 16 states. Mississippi has the highest adult obesity rate at 39.7% and Colorado has the lowest at 24.2%. Between 2019-2020, the adult obesity rate increased in Alabama, California and Iowa. Since 2015, the adult obesity rate has increased significantly in 26 states.

Updated September 2021

Fast Facts


States exceeded in adult obesity rates by 35%.


The national highest adult obesity rate, which was in Mississippi.


Number of states where adult obesity rates increased: Alabama, California and Iowa.

Explore the Data

Select years with the slider to see historical data. Hover over states for more information. Click a state to lock the selection. Click again to unlock.

Note: A change in methodology makes direct comparisons to data collected prior to 2011 difficult. Read the full rates and ranks methodology for more information.

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