In the United States, some 750,000 people experience homelessness on any given night. Over the course of a year, an estimated 2.5 to 3.5 million people experience homelessness. African-Americans are disproportionately represented in these numbers, making up an estimated 45% of the homeless population; some 41% are Caucasian; 11% Hispanic; 8% Native American. Approximately 41% are families with children, and 44% of homeless adults worked at some point in any given month. 66% of homeless adults reported problems with psychosocial disability, drug or alcohol abuse, or some combination of these problems.