Although cross‐country differences in the development of early childhood education and care (ECEC) services have been widely researched, the pronounced subnational variation that characterizes many countries is little researched. This article aims to contribute filling this gap by investigating the factors underlying ECEC development in Italian regions, where take‐up rates of public and subsidized daycare centers, behind a national average of 12%, range from 2% in some Southern regions to 25% in Emilia Romagna (North‐East). The article explores the configurations of economic, socio‐demographic, political, institutional, and cultural factors possibly responsible for high and low ECEC development through Fuzzy‐set/Qualitative Comparative Analysis. Results show that economic development and female employment are necessary but not sufficient conditions for ECEC development; similarly, familistic values, the lack of early ECEC development and of social capital are necessary but not sufficient conditions for limited expansion. The analysis identifies multifaceted patterns of (non)expansion, thus demonstrating the complexity of social policy development processes and preventing determinism based on need, cultural, or economic factors.