As far as the dogs are concerned only West Virginia is running. Two tracks, Wheeling Downs and Tri-State, both owned by Delaware North. They have about 3 years to go and then the puppies will be all done. Once New England and Florida closed shop, the game was basically over.
As a cautionary tale, the horse racing industry (both harness and flats) should take notice of how an industry lost its focus and public support thus ending the industry.