The document summarizes estimates of homeless youth populations in the United States. It provides data on the number of homeless youth under age 18, including 1.3 million who experience brief runaway episodes, and approximately 327,000 who experience temporary disconnection from home. It also estimates around 150,000 homeless young adults ages 18-24, most of whom experience short-term homelessness, and approximately 50,000 homeless young families, most of whom experience temporary homelessness. In total, the document analyzes population data on hundreds of thousands of homeless youth in the United States.