At least a few in Southern Indiana, too. The HUGE deer population is probably why.
A buddy who lives near Hoosier National Forest says either them, or Puma’s, have forced the local rabbits in to the town proper, to get away from them.
Sheriff’s deputy in Lawrence County, Indiana saw a Cougar eating roadkilled deer on Hwy 37 in 2010.
I have relatives who live in the southern part of PA. Two of them say they saw a mountain lion, as we call them here. It was on two different occasions and in two different areas, although the different areas were in close proximity to each other.
I thought I saw one about 2 months ago here on the Eastern Shore of Maryland, but I am not sure. Seemed like an awfully big cat with an exceptionally long tail. But I just saw it from the rear, and I was driving so.... There are definitely a lot of deer around here that they could feast on.