Some states allow homeless people to get IDs. Some do not. My state outlawed homelessness in last year's Crime Bill - the charge is now called "unlawful camping

Some states allow homeless people to get IDs. Some do not. My state outlawed homelessness in last year's Crime Bill - the charge is now called "unlawful camping" and it outlawed cities from having zones where people are allowed to camp unless they basically create something like a KOA campground (and outlawed using tax money to do so).