The CDC's weekly measles surveillance page now confirms 2,318 measles cases in the United States for 2026, a figure posted Friday and current through July 23. That total passes the 2,289 cases the agency recorded for all of 2025 and makes this the largest annual count since 1991.
What the newly posted federal data add is not just a bigger number. They show where the risk actually sits. According to CDC figures compiled by Axios, seven states account for more than 84% of the national total, and two of them, South Carolina with 670 cases and Utah with 522, together represent about half of every confirmed case in the country.
