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).

**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
Page last updated: February 2, 2018
Content source:
- Centers for Disease Control and Prevention
Maintained By:
- National Center for Chronic Disease Prevention and Health Promotion, Division of Diabetes Translation