Texas records
Common Watersnake in Texas
HarmlessNerodia sipedon

Yes. The Common Watersnake has been recorded in 13 Texas counties. It is non-venomous (harmless). Heavy banded or blotched body, round pupils, and a narrow head — unlike the cottonmouth's broad, blocky head.
Texas counties with Common Watersnake records
13 listedSee the full Common Watersnake profile or all snakes in Texas.