Some of these websites require experience or expertise to use, but they also have reports on their data that are useful for planners and policy makers.
Opportunity Atlas: Map of census & income data, by neighborhood
National Center on Child Care Data
National Survey of Children's Health: direct link to data search
Diversity Data Kids: access to multiple datasets on children
Research Connections A database of research on early childhood care and education
2018 KIDS COUNT Data Book: State Trends in Child Well-being
Child Care in State Economies - clickable map for state-level reports
Snapshots of Child Care Supply and Demand - clickable map for state-level reports
Demand for Child Care and Supply 2013
Child Care Choices, Family Income & Mothers' Employment
Child Care Constraints Among American Families
The Early Childhood Workforce Index 2018
Statistical Abstract of the U.S. 2012
Census publications on child care/ECE
Estimating the cost of quality state-funded preschool programs, a calculator from NIEER