Parenting behaviors that support and hinder adolescents’ developmental needs for autonomy, relatedness, and competence are associated with adolescent self-control. However, less research has examined a range of parenting behaviors in relation to adolescent self-control within a single study. Moreover, these associations may vary based on adolescents’ sociodemographic characteristics, such as age, sex, and socioeconomic status. We analyzed adolescent self-reported survey data from a sample of adolescents ages 11–19 years in 2 Appalachian, southeastern U.S. states (N = 406, M = 15.00, 57.6% female), examining multiple parenting behaviors and adolescents’ self-control. Data collection occurred in Spring 2020. Multivariable linear regressions examined: (1) associations among parenting behaviors (i.e., behavioral control, warmth, solicitation, psychological control) and adolescents’ self-control controlling for adolescents’ sociodemographic characteristics; and (2) interactions between parenting behaviors and adolescents’ sociodemographic characteristics (i.e., age, sex, family financial strain) in relation to adolescents’ self-control. For all adolescents, family financial strain was associated with lower levels of self-control. For younger, but not older adolescents, parental behavioral control was associated with higher levels of self-control. Parental warmth was associated with higher levels of self-control for male adolescents only, whereas parental psychological control was associated with lower levels of self-control for female adolescents only. Findings have important implications for understanding familial factors that promote and inhibit adolescent self-control by identifying its association with individual parenting behaviors, and key sociodemographic characteristics that strengthen these associations. Findings may be used to develop targeted parent-child interventions and resources to aid in the development of self-control during adolescence.