Measles cases in 2026
Resources for Communities with a Measles Outbreak:
As of October 1, 2026, 3,887 confirmed* measles cases were reported in the United States in 2026. Among these, 3,869 measles cases were reported by 47 jurisdictions: Alabama, Alaska, Arizona, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, 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, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, and Wyoming. A total of 18 measles cases were reported among international visitors to the United States.
There have been 42 new outbreaks** reported in 2026, and 95% of confirmed cases (3,700 of 3,887) are outbreak-associated (2,316 from outbreaks starting in 2026 and 1,384 from outbreaks that started in 2025).
For the full year of 2025, a total of 2,289 confirmed* measles cases were reported in the United States. Among these, 2,263 measles cases were reported by 45 jurisdictions: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Michigan, Minnesota, Missouri, Montana, Nebraska, Nevada, New Jersey, New Mexico, New York City, New York State, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, Wisconsin, and Wyoming. A total of 26 measles cases were reported among international visitors to the United States.
There were 48 outbreaks** reported in 2025, and 90% of confirmed cases (2,066 of 2,289) were outbreak-associated. For comparison, 16 outbreaks were reported during 2024 and 69% of cases (198 of 285) were outbreak-associated.
*CDC is aware of probable measles cases being reported by jurisdictions. However, the data on this page only includes confirmed cases jurisdictions have notified to CDC.
**CDC reports the cumulative number of measles outbreaks (defined as 3 or more related cases) that have occurred this year in the U.S.; states have the most up-to-date information about cases and outbreaks in their jurisdictions.
Real-time measles updates from states
Find more real-time updates of measles cases reported by:
U.S. Cases
| Under 5 years | ||
| 5-19 years | ||
| 20+ years | ||
| Age unknown | ||
| Unvaccinated or Unknown | ||
| One MMR dose | ||
| Two MMR doses |
U.S. Hospitalizations
| Under 5 years | ||
| 5-19 years | ||
| 20+ years | ||
| Age unknown |
U.S. Deaths
*This number is subject to change; CDC will update its reporting as additional information becomes available and relevant reviews are completed.
CDC is also working with the Council of State and Territorial Epidemiologists (CSTE) to develop a standardized case definition for deaths due to measles. This work is intended to promote consistent classification and reporting of measles deaths across jurisdictions.
Note: The total number of cases includes cases among international visitors to the U.S.
Source: www.cdc.gov
