Texas records
Black-necked Garter Snake in Texas
HarmlessThamnophis cyrtopsis

Yes. The Black-necked Garter Snake has been recorded in 37 Texas counties. It is non-venomous (harmless). Slender body with three light stripes running the length of a darker back.
Texas counties with Black-necked Garter Snake records
37 listedSee the full Black-necked Garter Snake profile or all snakes in Texas.