Yes, The Texas Vamps is definitely a goth band because most of their albums belong to the Deathrock genre, which is a core subgenre of goth music. Albums like Everything And Nothing... and In Harm's Way are examples of their goth sound.
The Texas Vamps is located in United States, Greater Los Angeles, The Inland Empire, active in 1989 — 1992. You can find more information about The Texas Vamps on their GothDB band page.