What US cities have the cheapest rent for apartments?

I'm in NYC and I need to move out of my mom's house. I'm getting old (I'm 29). But I don't foresee myself paying any exorbitant amount of rent here in the big apple, so I think I must relocate to another city. Does anyone know of a fairly safe city in the US where the rent is cheap? Do you have any suggestions? Thanks so much in advance.

Public Comments

1. Problem: after you move into a cheap area, you find out why it's so cheap. I retired to a 'Right to Starve" state. NYC is pricey, but it's NYC. You can live in Florida cheaper, but you're living in Florida.
2. Cheapest housing in the US, of any large city, is in Indianapolis, so the rents are probably the lowest there too. But Indy sort of sucks. Other option might be Columbus Ohio (home of OSU), far more cultural, yet still cheap.