This study tests a multilevel model of factors that affect adolescents' decisions to use alcohol. Hierarchical linear modeling was used to estimate the variance in alcohol use accounted for by the influences of individual, social, and neighborhood factors. Social factors are significant predictors of alcohol use across several models tested, while selected neighborhood factors were generally not. Results indicate that social and community contexts have important effects on adolescent alcohol use, and that social influences were more significant predictors of alcohol use than neighborhood factors for this sample.