Where Is Evan Rachel Wood Supposed To Be From?

Last week, the trailer for Whatever Works, the new Woody Allen joint starring Larry David as Larry David playing Woody Allen, found its way online. In it, Evan Rachel Wood plays a dim-witted girl who is apparently hails from some unidentifiable locale south of the Mason Dixon line.
Based on the trailer and nothing else here's a short list of where Evan Rachel Wood's character is supposed to be from:
—Texas?
—Generic Tin-Eared Southern Accent City, Texas