Head Start is a national program that helps young children from families with low incomes get ready to succeed in school. It does this by working to promote their early learning and health and their families' well-being. The Head Start Family and Child Experiences Survey (FACES) provides national information about Head Start programs and participants. Mathematica and its partners--Educational Testing Service and Juárez and Associates--conducted the study under contract to the Office of Planning, Research, and Evaluation, Administration for Children and Families, U.S. Department of Health and Human Services. Data from the study respond to current policy questions and support programs and practitioners working with Head Start families. This report includes information on the FACES 2019 study design, and presents key findings from the study's spring 2020 data collection. The purpose of this report is to (1) provide information about the FACES 2019 study, including the background, design, methodology, assessments, and analytic methods; and (2) report detailed descriptive statistics (averages, response ranges, and percentages) and related standard errors (the estimate of the standard deviation of each statistic) in a series of tables. [For "Descriptive Data on Head Start Children and Families from FACES 2019: Fall 2019 Data Tables and Study Design," see ED613786.]