Homeless is a common event that happens from varying different situations all over the world.
Nigeria has the most at a whopping 24 million homeless, the Pakistan at 20 million homeless, Syria has 6.5 million and Yemen has 3.8million. https://en.wikipedia.org/wiki/List_of_countries_by_homeless_population
Here is a graph of total percentage of population homeless in America.
https://www.usich.gov/tools-for-action/map/#fn[]=1300&fn[]=2900&fn[]=6400&fn[]=10200&fn[]=13400&all_types=true&year=2020
Proven Solutions: https://www.samhsa.gov/homelessness-programs-resources
Programs for runaway and homeless youth (RHY) https://www.acf.hhs.gov/fysb/runaway-homeless-youth
Health Care for the homeless program (HCH) https://www.nachc.org/health-center-issues/special-populations/health-care-for-the-homeless/
Projects for assistance in transition from homelessness (PATH) https://www.samhsa.gov/homelessness-programs-resources/grant-programs-services/path