To inform their policy, planning, and advocacy efforts, First 5 Alameda County and the Alameda County Early Care and Education Planning Council sought countywide information about teaching staff employed in center-based ECE programs. The overall goal of this study was to identify the demographic, education, and employment characteristics (including compensation and workplace conditions) of Alameda County's center-based ECE workforce. In addition to informing First 5 Alameda County and the Planning Council, these data are also intended to be a resource for stakeholders that require current information on the state of the early childhood workforce to inform policymaking, planning, and the investment of resources. (author abstract)