Introduction. For contemporary humanities one of the urgent problems is the study of the interaction and coexistence of people of different nationalities, as well as the transformation of their ethnic identity in the context of constant interethnic contacts. It is especially important to trace these processes in contact zones, in particular in ethnically mixed villages, an example of which is the village of Bol’shaya Kamenka in Samara region. Research Methods. The authors used historical-comparative and structural-functional methods. They made it possible to analyze the transformations of the cultural and linguistic sphere of the ethnic groups under consideration and determine their results. Field studies were conducted in a qualitative paradigm, in the framework of which an empirical interpretation of the concepts associated with the study was carried out. Results. The article discusses the ethno-territorial structure of the settlement, analyzes the processes of interethnic interaction between Russians and Mordvinians, resulting from the types of ethnic self-awareness / identity of people, in particular, such a component as a sense of oneself. The prospects and significance of the model of consolidation (solidarity) of the rural community in the context of both Russian-Mordvinian and interethnic interaction in the Samara Volga are estimated. Discussion and Conclusion. As a result of the study, it was revealed that the result of the long Russian-Mordovian interaction in the village of Bol’shaya Kamenka of the Samara region was a model of consolidation or solidarity of various ethnic groups. It continues to work now. Not only representatives of ethnic groups historically living in the Samara region have the opportunity to join it, but also migrants who moved here relatively recently.