This report presents a five-year trend of children under age six who are experiencing homelessness at the national level, in the 50 States, the District of Columbia, and Puerto Rico. It uses data collected from 2013-14 to 2017-18 by the Administration for Children and Families (ACF) and the Office of the Assistant Secretary for Planning and Evaluation (ASPE) within the U.S. Department of Health and Human Services (HHS) and by the U.S. Department of Education (ED). It also includes publicly available data from the U.S. Census Bureau (Census), the U.S. Department of Housing and Urban Development (HUD) (2014 to 2018), and from the Annie E. Casey Foundation (2013 to 2017). In January 2016, ACF released Early Childhood Homelessness 50-State Profiles as part of an interagency early childhood workgroup of the U.S. Interagency Council on Homelessness (USICH), which included member agencies ACF and ASPE within HHS, ED, HUD, and the U.S. Department of Agriculture (USDA). ACF released a second state profile report in 2017 and then ED issued annual reports in 2018, 2019, and 2020. This report presents five-year trends for the data collected from 2013-14 to 2017-18 by jurisdiction to inform policymakers, practitioners, and researchers on the change in the size and service coverage of young children experiencing homelessness. Homeless children and youths lack a fixed, regular, and adequate nighttime residence. Having five-year trend data helps policymakers and the public understand the evolving prevalence and nature of early childhood homelessness. (author abstract)