Homelessness is a chronic public health issue in the U.S. This paper reviews the endurance and evolution of individual, youth, and family homelessness over the past 40-plus years. Thematic findings detail research on predictors of homelessness among adolescents, runaway youth, veterans, older adults, sheltered families, and female-headed families. Results provide a summary of contributors to homelessness, including issues related to family instability, unemployment and poverty, mental illness, substance use, unstable living arrangements, child maltreatment, social support, crime, and violence. Findings high- light key and persistent predictors of homelessness found across decades, as well as more recently identified and nuanced precursors to individual or family displacement. The goal of this work was to summarize what is known about predictors of homelessness to inform targeted research, practice, and policies.

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