
Average adult female BMI in the U.S. from 1999 to 2016, by age
This statistic depicts the average body mass index (BMI) of U.S. females aged 20 years and over from 1999 to 2016, by age. According to the data, the average female BMI for those aged 40-59 years was 29 in 1999-2000 and increased to 30.4 as of 2015-2016.