What other universities/colleges (even a community or junior college) are there in a 50 mile radius?
Nada, really. There are the other state colleges in the system, but they're not going to pay any more than this job.
To be honest, I'm not sure I'd want to work for another school if I moved on. I do like the whole school year thing and the benefits and to an extent the atmosphere...but I could certainly make more working for a business. I was making a good third more at the last place I worked.