None of these are reasons why you cannot move. They are excuses.
1) I am in a field where less than 50 schools of higher education offer the area of study; predominately because it is all graduate education.
Apply to those 49. Apply to other schools with a link to your field, even if they do not have a department.
2) I moved here with a significant other. The area allowed both of us to have jobs. Since arriving here, we broke up. He moved and I stayed in the small condo. The economy is such that I would never sell this condo without taking a HUGE loss. I have no savings and would not be able to pay a mortgage and a rent at a new job. Financially there is no way I could just move.
Not having to worry about an SO's job is a benefit in an academic job search, not a problem. Take the huge loss on the condo. Live very meagerly for the next few years. It can be done. Do you have children? If not, that is another reason why moving would be easier for you than many, both logistically and financially.
3) My research focuses on community-based problems. I had the community and had no idea how I would move my "work" since I had spent a great deal of time developing the community relationships. It was as if my grants tied me to the area.
Other communities exist. You would have to work hard to establish new relationships. Working hard should not be an impediment for you. The longer you wait to move, the harder this will be.
4) I have no family, so I have no safety-net. I have no saving, so I have no safety-net.
No family ties to the area makes it easier to move. Start figuring out your finances to see why you have no savings. Live meagerly.
So, these are just a few of the reasons why I could not just move. Additionally, I tried to remain positive hoping that things would get better, but they have declined. Nothing odd, just life.
You may be trying to remain positive, but you sound very pessimistic. You listed the "reasons" why you cannot move and they read more like "moving would be hard." So it's hard, that doesn't mean you can't do it. If you want things to be easy, get out of academic. Here are reasons why moving is easier for you than most people on the forum:
1) Good publication record.
2) No family ties to the area.
3) Good grant record.
4) No worries about the SO's geographic preferences or career
5) Still junior in career
You are not in such a bad position, despite your current job. Move. It is definitely worth trying. Just apply.