There is an Estimated 100 plus Million Americans at risk of diabetes in the following order: Data from the 2011 National Diabetes Fact Sheet (released Jan. 26, 2011) Total prevalence of diabetes Total: 25.8 million children and adults in the United States -- 8.3% of the population -- have diabetes. Diagnosed: 18.8 million people Undiagnosed: 7.0 million people Pre-diabetes: 79 million people