State watch

Wisconsin Snakehead

The USGS Nonindigenous Aquatic Species database records snakehead at 1 location in Wisconsin — these are reported or eradicated occurrences, not confirmed established populations. Confirm current status with your state wildlife agency.

📍 Where to fish

Snakehead waters in Wisconsin · 1 spot mapped

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Rock River

riverGiant snakeheaderadicated

Documented giant snakehead water in Rock County, Wisconsin. Middle Rock drainage. 1 USGS specimen record (2003); status: failed. Location verified from the USGS Nonindigenous Aquatic Species database.

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