Cdc Overweight & Obesity Overweight & Obesity Home Adult Obesity Facts Obesity Prevalence Maps Adult obesity prevalence by state and territory using self-reported information from the Behavioral Risk Factor Surveillance System. Obesity is a common, serious, and costly disease The US obesity prevalence was 41.9% in 2017 – March 2020. (NHANES, 2021) From 1999 –2000 through 2017 –March 2020, US obesity prevalence increased from 30.5% to 41.9%. During the same time, the prevalence of severe obesity increased from 4.7% to 9.2%. (NHANES, 2021) Obesity-related conditions include heart disease, stroke, type 2 diabetes and certain types of cancer. These are among the leading causes of preventable, premature death. The estimated annual medical cost of obesity in the United States was nearly $173 billion in 2019 dollars. Medical costs for adults who had obesity were $1,861 higher than medical costs for people with healthy weight. Obesity affects some groups more than others  [Read C...