Since people who experience homelessness move from place to place frequently, it can be difficult to accurately measure the homeless population in the United States.  In 2017, it was estimated that over 40,000 veterans were experiencing homelessness on any given night -- either sleeping at a shelter, on the street, or another temporary residence. Out of these veterans, 91% were men and 9% were women.

Veterans comprise approximately 9% of the homeless adult population, and 50% of homeless veterans struggle with serious mental illness.  70% of these veterans experience substance abuse, and many of them are older adults -- 50% are aged 51 years or older, and only 19% of homeless non-veterans are in this age group.5,6 In addition, 55% of homeless veterans have a disability, which can also create barriers to employment and housing.

There are many related resources at this link.

https://drpaulbythesea.com/veterans-and-homelessness-how-to-seek-help/