This study conceptualizes local communication networks as a unique source of neighborhood collective efficacy. Data from the Seattle Neighborhoods and Crime Survey were used to create neighborhood-level measures of structural factors, friendship/kinship networks, organizational participation, local communication networks, collective efficacy, disorder, and crime victimization. Results indicate that socioeconomic status and residential stability have positive effects on local communication networks. The measure of local communication networks is positively related to collective efficacy, which in turn has decreased effects on disorder and crime victimization. Implications are discussed in terms of the role of communication in building a safe community.