West Nile Virus in Washington
Washington has no recent West Nile Virus activity, but 8 alerts have been recorded historically.
Risk Level
🟢 Low
No cases reported in the past 30 days
Cases (30 days)
0
Total Cases
8
Counties Affected
4
Most recent West Nile Virus alert in Washington: Sep 18, 2026
West Nile Virus Alerts in Washington
Franklin, Washington
Sep 18, 2026 · active
1
confirmed
Benton, Washington
Sep 14, 2026 · active
1
confirmed
Benton, Washington
Aug 14, 2026 · active
1
confirmed
Benton, Washington
Aug 11, 2026 · active
1
confirmed
Yakima, Washington
Sep 30, 2025 · active
1
confirmed
Adams, Washington
Sep 26, 2025 · active
1
confirmed
Adams, Washington
Sep 26, 2025 · active
1
confirmed
Yakima, Washington
Sep 12, 2025 · active
1
confirmed
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