This study links county-level early care and education (ECE) program, economic, and demographic data to child-level data from the Early Childhood Longitudinal Study--Kindergarten Cohort of 2010-2011 to examine geographic variation in ECE program participation and provision. We find that public ECE programs, particularly Head Start, occupy a larger role in nonmetropolitan communities than in metropolitan areas. By contrast, children in rural counties are less likely to attend private center-based ECE, and nonprofit childcare program expenditures in rural areas lag. We also find rural-metropolitan differences in school readiness diminish when geographic characteristics are controlled. Results suggest that county-level context and state-level policy features shape children's early experiences, and that public ECE investments are key in narrowing disparities in ECE attendance and in children's outcomes. [Note: The page range (100-123) shown on the PDF is incorrect. The correct page range is 100-122.]