Coparenting in unmarried families is a protective factor for positive adolescent adjustment. Although the relations between coparenting and adolescent outcomes have been investigated, it remains unclear whether the specific patterns of maternal and paternal coparenting are associated with adolescent behavioral outcomes.The present study includs a longitudinal cohort of 1143 triads of unmarried parents and their adolescents to examine the associations between different patterns of coparenting and adolescent behavioral problems and delinquency. The data were drawn from the Future of Families and Child Wellbeing Study in the United States. Our study used six waves of publicly available data at children's birth, ages 1, 3, 5, 9, and 15.The latent profile analyses identified four coparenting profiles of maternal and paternal coparenting perceived by the other unmarried parent. Comparing average levels of coparenting between mothers and fathers, the profiles were entitled Low Mom-Low Dad, High Mom-Medium Dad, Low Mom-Medium Dad, and High Mom-High Dad. Parents characteristics, such as cohabitation and marital status, predicted the likelihood of being in cooperative coparenting profiles. Furthermore, all the identified coparenting profiles predicted adolescent externalizing behavioral problems; only the high mom cooperative coparenting profiles predicted adolescent internalizing behavioral problems; none of the coparenting profiles predicted adolescent delinquency.Our study adds empirical evidence for coparenting research by revealing that coparenting patterns vary in unmarried families and that cooperative coparenting benefits child behavioral outcomes. The findings encourage introducing different coparenting training programs targeting unmarried parents' diverse needs, thus promoting positive adolescent adjustment.