Case Western Reserve University’s integrated data system covers children and young adults living in Cuyahoga County beginning with the 1992 birth cohort. Data from numerous agencies are linked at the individual level. Data sources include birth and death certificates, home visiting and early intervention, child care and preschool, early childhood mental health, elevated blood lead, child abuse and neglect investigations, child welfare placements, juvenile justice filings, TANF, SNAP, Medicaid participation, public school student records, homeless services, and jail data. Additional data sources are added as new agencies begin to work with the Center and become interested in seeing their data linked in order to address cross-sector policy issues and program needs.