As a response to the COVID-19 pandemic, an increase in social cohesion was observed during the first wave and its aftermath. A closer look reveals heterogeneous responses regarding aspects of cohesion—such as trust in others and compliance with containment measures—that differ by individual socioeconomic and cultural characteristics. How these characteristics affect social cohesion in combination is rarely investigated. Therefore, we introduce the concept of social milieus, which addresses the interrelation of socioeconomic and cultural characteristics on the level of social groups, into the international debate. While previous studies have applied this concept to the analysis of social cohesion during the pandemic, they exhibit theoretical and empirical shortcomings. Hence, we develop a new theoretical model of social milieus and an empirical typology using the German sample of the European Social Survey. This typology is matched with data from the Research Institute Social Cohesion (RISC) for a milieu-specific analysis of social cohesion. Results show considerable heterogeneity in social cohesion during the first wave of the pandemic in Germany. Three social milieus with potentially conflicting modes of social cohesion regarding trust and compliance stand out while other milieus are less diverging as presumed in the literature. These modes can be interpreted as emerging from a combination of the milieus' socioeconomic position and basic human values. Thus, the new theoretical model and empirical typology of social milieus contribute to the understanding of how social cohesion has been contested between social milieus early in the pandemic.

Current debates on threats to social integration in times of multiple crises call for a better understanding of the relationship between socioeconomic inequality and sociocultural value conflicts. The aim of this article is to (re)introduce the concept of social milieus as a promising approach to capture the complexity of this relationship at the group level. We offer a theoretical extension of the concept of social milieus, which has so far been limited to the German discourse, by linking it to the international debate on sociocultural “cleavages” and cultural value conflicts. Social milieus are defined as large latent groups with similar socioeconomic positions and cultural values. Accordingly, they develop milieu-specific forms of social integration in potentially conflictual demarcation from other milieus. This conceptualization offers a theoretical framework for analyzing social integration from the perspective of social groups in terms of social integration within social milieus and relationships between milieus. In order to illustrate the capabilities of this theoretical approach, we develop a first empirical model of social milieus in Germany based on a Latent Class Analysis of socioeconomic indicators and Schwartz’ basic human values. With this theoretical concept and empirical model, we put social milieus on the international research agenda for the analysis of social integration within and between social groups.