Incidence of inflammatory bowel disease in the United States in 2015-2016, by region

Percentage of adults with Crohn's disease or ulcerative colitis in the U.S. in 2015-2016, by region

The data displays the percentage of adults in the United States who had been told by a doctor or other health professional that they had Crohn's disease or ulcerative colitis in 2015-2016, by region. As of that year, an estimated 1.3% of adults in the Northeast had been diagnosed with one of these inflammatory bowel diseases.

Northeast 1.3
South 1.3
Midwest 1.2
West 1.2