what county is vernon,tx
Sponsored Topics. Vernon is a city in Wilbarger County, Texas, United States. As of the 2000 census, the population was 11,660; it was 11,077 in the 2005 census estimate. Vernon is the county seat of Wilbarger County. Vernon is the birthplace of rock and roll singer/musician Roy Orbison and jazz trombonist Jack Teagarden.