Minnesota records
Common Watersnake in Minnesota
HarmlessNerodia sipedon

Yes. The Common Watersnake has been recorded in 14 Minnesota counties. It is non-venomous (harmless). Heavy banded or blotched body, round pupils, and a narrow head — unlike the cottonmouth's broad, blocky head.
Minnesota counties with Common Watersnake records
14 listedSee the full Common Watersnake profile or all snakes in Minnesota.