As of 2015, 9.4% of the US population, or 30.3 million people, have diabetes, while 84.1 million have prediabetes, according to the CDC’s 2017 National Diabetes Statistics Report. Researchers also found increased rates of diagnosed diabetes with age, with 25.5% of adults ages at least 65 having diabetes, compared with 4% of those ages 18 to 44. —Source