I am a Realtor in the Johnson City, Vestal, Binghamton area, also in PA. Land in WP is currently avg.between 1800 -3,500. I just did a land comparison and from all that I pulled the average was 2,800 per acre. I have a lisiting coming up with in the month that will be listed at that average. It depends on what you have on the land and what its uses are.
I AM a REALTOR in NY and originally from WAY upstate, in the Rochester Area. I now live in the Hudson Valley Area. I can easily refer you to an agent in the Binghamton Area so you can get a professional opinion. Let me know if you would like that. I am happy to help you.