--- - |2 Based on interviews with 100 members of mixed‐status families in Los Angeles, California, this article analyzes how U.S. citizen children practice and understand citizenship in the context of punitive laws targeting their loved ones. Participants' narratives of citizenship as privilege, responsibility, and guilt reveal that despite normative conceptions of citizenship as a universally equal status, citizenship intersects with key social markers to determine the contours and inequalities of substantive citizenship. Specifically, U.S. citizens in mixed‐status families make sense of their juridical category when they navigate unrealistic aspirations from relatives, maintain silence about undocumented family members' legal status, manage their fear of family separation through deportation, and take on financial and logistical responsibilities prematurely to help relatives. In each of these ways, family proves to be a key site for the social and relational production of citizenship. - 'Law &Society Review, Volume 53, Issue 3, Page 641-670, September 2019. '