In this presentation I’ll share preliminary findings from Project Aquila, in which we used cultural domain analysis (CDA) to examine the distribution of cultural knowledge within the transnational social networks of Brazilian and Dominican immigrants in Boston. CDA includes a set of methods, developed within cognitive anthropology, that are used to study the content and structure of knowledge domains that are culturally defined. Such methods include consensus analysis (CCA) and cultural consonance analysis (CCO). CCA is used to assess the extent to which members of a community share cultural beliefs. CCO extends this work and posits that external constraints, including discrimination and economic hardship, can limit the extent to which people’s behavior approximates prototypical practices encoded in cultural models. Typically, both CCA and CCO are done with unrelated people who are thought to be members of the same culture. I will demonstrate the utility of embedding cultural consensus and cultural consonance data within a social network as a way to understand the distribution of cultural beliefs and behaviors within a group. I will discuss the ways that conceptualizing culture in terms of shared cultural knowledge within social networks contributes to the study of the relationship between culture and health in a number of ways.