This study investigates the social incorporation of unaccompanied, undocumented Latinx youth workers as they come of age in the United States. Based on research with undocumented Central American and Mexican young adults who grew up as unaccompanied minors in Los Angeles, California, the data reveal that the pressures of financial obligations to families in the sending country and their own sobrevivencia (survival) in the United States, along with limited financial and social resource and mobility, produce a social incorporation trajectory shaped by the primacy of work. Work primacy conditions youth’s educational opportunities, community embeddedness, and family relationships and limits unaccompanied, undocumented youth’s ability to establish and maintain social networks with consequences for their social incorporation. The precarious occupations within the secondary labor market that are characterized by long hours, low wages, labor market restrictions, and unsafe and unsanitary work conditions limit opportunities for socioeconomic mobility for all youth. Women and Indigenous youth are distinctly affected by work primacy. This research advances our understanding of immigrant youth’s lives by examining how institutional context, familial obligations across borders, and limited ethnic networks play a role in shaping the incorporation experiences of unaccompanied, undocumented Latinx immigrants as they come of age in the United States.