Prevalence of Both Diagnosed and Undiagnosed Diabetes

  • An estimated 30.3 million people of all ages—or 9.4% of the U.S. population—had diabetes in 2015 (Methods).
  • This total included 30.2 million adults aged 18 years or older (12.2% of all U.S. adults), of which 7.2 million (23.8%) were not aware of or did not report having diabetes (Table 1) (Methods).
  • The percentage of adults with diabetes increased with age, reaching a high of 25.2% among those aged 65 years or older (Table 1).
  • Compared to non-Hispanic whites, the age-adjusted prevalence of diagnosed and undiagnosed diabetes was higher among Asians, non-Hispanic blacks, and Hispanics during 2011–2014 (see Table 1a in the Appendix for more details).

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Table 1. Estimated number and percentage of diagnosed and undiagnosed diabetes among adults aged ≥18 years, United States, 2015
Characteristic Diagnosed diabetes No. in millions (95% CI)a Undiagnosed diabetes No. in millions (95% CI)a Total diabetes No. in millions (95% CI)a
Total 23.0 (21.1–25.1) 7.2 (6.0–8.6) 30.2 (27.9–32.7)
Age in years
18–44 3.0 (2.6–3.6) 1.6 (1.1–2.3) 4.6 (3.8–5.5)
45–64 10.7 (9.3–12.2) 3.6 (2.8–4.6) 14.3 (12.7–16.1)
≥65 9.9 (9.0–11.0) 2.1 (1.4–3.0) 12.0 (10.7–13.4)
Sex
Women 11.7 (10.5–13.1) 3.1 (2.4–4.1) 14.9 (13.5–16.4)
Men 11.3 (10.2–12.4) 4.0 (3.0–5.5) 15.3 (13.8–17.0)
Percentage (95% CI)b Percentage (95% CI)b Percentage (95% CI)b
Total 9.3 (8.5–10.1) 2.9 (2.4–3.5) 12.2 (11.3–13.2)
Age in years
18-44 2.6 (2.2–3.1) 1.3 (0.9–2.0) 4.0 (3.3–4.8)
45-64 12.7 (11.1–14.5) 4.3 (3.3–5.5) 17.0 (15.1–19.1)
≥65 20.8 (18.8–23.0) 4.4 (3.1–6.3) 25.2 (22.5–28.1)
Sex
Women 9.2 (8.2–10.3) 2.5 (1.9–3.2) 11.7 (10.6–12.9)
Men 9.4 (8.5–10.3) 3.4 (2.5–4.6) 12.7 (11.5–14.1)
Page last reviewed: February 2, 2018