The purpose of this study is to explore the influence of the relational structure of a community on tourism-related community collective action. Employing social network analysis and interviews, the network structure and community collective actions were examined at two communities on Jeju Island, South Korea. The research results demonstrate positive associations between successful collective action involvement and features from the relational network structure in communities, such as network density and social pressure related to social roles. The findings can be used to identify specific types of community network structure that facilitates an individual’s tourism related collective action involvement.