🦠 U.S. Measles Dashboard

County-level confirmed measles cases, nationwide
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Cases
0
Affected States
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Affected Counties
Trailing 6-week total · past year
Recent weeks provisional — revised up as reports arrive.
Case Distribution
Cases by State
StateCasesCounties
Marker type
County (exact location)
Health region (approx. center)
State only (county not reported)
Case count
Cases not placed on the map (0)
A few jurisdictions report by a region we can't map to a defined area (e.g. Iowa's HHS districts). These are counted in the totals above but not shown as a marker. State-only and health-region cases are mapped — as squares and triangles respectively.
    Worst years · since 2000
    Biggest 6-week surges
    New case data is published weekly — check back Fridays.
    Lab-confirmed cases since Jan 1, 2025. “6-week active” = cases reported in the last 42 days.
    Data: JHU Measles Tracking Team Data (Johns Hopkins University), licensed under CC BY 4.0.