Objective: To document the extent of inequalities in language and motor development at age 2 according to various socioeconomic indicators. Method: The study is based on recent data from the French Longitudinal Study of Childhood (Elfe), a national survey tracking a cohort of over 18,000 children since their birth in 2011 in metropolitan France. Socioeconomic inequalities (based on parental education and income) in child development are analyzed using a language indicator (the MacArthur-Bates Inventory) and a motor development score constructed from eight variables. Results: At age 2, children’s language development is marked by a strong socioeconomic gradient based on household income or the mother’s educational attainment. The raw difference between the most advantaged and least advantaged households (in terms of both education and income) is on the order of half a standard deviation. The adjusted differences, after controlling for variables, are smaller but persist. Part of these inequalities may be due to socioeconomic disparities in the use of formal childcare at these ages. We do not observe differences in terms of motor development. Conclusion: these results highlight that socioeconomic differences are present from the earliest years and can influence future trajectories. Although language and physical development are largely linked to these early ages, socioeconomic inequalities are most pronounced in language development.