Tennessee records
Diamondback Watersnake in Tennessee
HarmlessNerodia rhombifer

Yes. The Diamondback Watersnake has been recorded in 22 Tennessee counties. It is non-venomous (harmless). Heavy banded or blotched body, round pupils, and a narrow head — unlike the cottonmouth's broad, blocky head.
Tennessee counties with Diamondback Watersnake records
22 listedSee the full Diamondback Watersnake profile or all snakes in Tennessee.