At noon on June 18, 2026, the Centers for Disease Control and Prevention updated its official measles tracker. The numbers represent a milestone that American public health has been dreading for over a year: 2,104 confirmed measles cases in a single calendar year, spread across 41 jurisdictions, with 30 separate active outbreaks still driving transmission.
As the CDC's June 18, 2026 measles data page confirmed, the 2026 case count now includes 2,093 cases in 41 state jurisdictions — Alaska, Arizona, California, Colorado, Connecticut, District of Columbia, Florida, Georgia, Idaho, Illinois, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, Montana, Nebraska, New Jersey, New Mexico, New York City, New York State, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Texas, Utah, Vermont, Virginia, Washington, Wisconsin, and Wyoming — plus 11 cases in international visitors to the United States.
