St. Louis MO (the city itself), and has taken some steps to try and help these folks out w/ shelters and the like, but it is overwhelming. It also doesn't help when the surrounding cities and counties ship their homeless to St. Louis City by taking them and dumping them in the city limits (they don't want to handle/address their homeless, so the affluent communities (some of them, not all of them) will ship their homeless to the city and dump them).
This is a nationwide problem, of course, but in more warmer climates, it is worse. And what is more amazing about it, is that it doesn't seem to be getting better (the situation). As long as we have such a disparity of income equality, and desire to help from the wealthy, we won't ever get rid of this problem, for the ultra rich has already said their piece and thus, don't want anything to do w/ these unfortunate souls. Thus, the rest of us gets stuck dealing w/ the problem (e.g., look at all of the gated communities in this country, Ladue, Clayton, etc.).