An LAT series of articles on homeless populations in Hollywood found that more than 60% of Hollywood's homeless, and more than 80% of the drug-abusing homeless, were not L.A. or even SoCal locals, and had come to L.A. from out-of-state. More than half of the homeless came from the Southwest, with the majority coming from Texas.
Even LAHSA's own survey of the homeless reveals that most of the homeless in L.A. weren't local to L.A. prior to becoming homeless in L.A. (However, because LAHSA's funding is based in part on the number of homeless, they characterize anyone that has been in L.A. for over a year as local, even if that individual has never had an actual residence in L.A. and was homeless upon arrival.)