Since 2014, there has been a large increase in the numbers of unaccompanied migrant children from Central America entering the U.S. across the U.S. Mexico border. While these children have been at the center of a media firestorm, little is known about their health, mental health, and educational needs, and how U.S. communities are responding to those needs. This fact sheet describes the national, state, and Bay Area contexts to identify how many children are in detention, how many children have been released to family members and other sponsors, and the general patterns of their needs, as well as Bay Area community responses.