Previous literature argues that social networks influence religiosity, but surprisingly, no studies have used national data of a variety of religious traditions to assess the relationship between embeddedness in congregation-based friendship networks and different dimensions of religiosity. This study uses new national data (Baylor Religion Survey 2007) to estimate models of religious activity (church activities and devotional activities) and of religious belief (supernatural beliefs, biblical literalism, and religious exclusivity). Among U.S. Christians, congregational social embeddedness is a robust predictor of all religiosity outcomes and is among the largest effects in models. These effects are not substantially moderated by religious tradition, although Catholic affiliation attenuates the positive relationship between social embeddedness and church activities. These findings strongly suggest that social sanctions and solidarity rewards within congregational social networks play an important role in heightening religiosity. Religious research would be enhanced by devoting greater attention to the importance of congregational social embeddedness.

Scholars have long theorized that religious contexts provide health-promoting social integration and regulation. A growing body of literature has documented associations between individual religiosity and health as well as macro–micro linkages between religious contexts, religious participation, and individual health. Using unique data on individuals and county contexts in the United States, this study offers new insight by using multilevel analysis to examine meso–micro relationships between religion and health. We assess whether and how the relationship between individual religiosity and health depends on communal religious contexts. In highly religious contexts, religious individuals are less likely to have poor health, while nonreligious individuals are markedly more likely to have poor health. In less religious contexts, religious and nonreligious individuals report similar levels of health. Consequently, the health gap between religious and nonreligious individuals is largest in religiously devout contexts, primarily due to the negative effects on nonreligious individuals’ health in religious contexts.