The social well-being of people of different nationalities is considered as an important component of the ethno-social situation and the qualitative characteristics of the urban inter-ethnic community. Such a community is justified as a significant object of ethnic policy at the municipal level. Based on the generalization of the results of mass sociological polls conducted under the leadership of the author, the paper describes the social well-being of the population of Novosibirsk: the level of general well-being and degree of satisfaction with certain aspects of life, identity, state and dynamics of inter-ethnic relations, as they are seen by different ethnic groups. It records, on the one hand, the existence of favorable social well-being and a benevolent attitude of the majority of residents towards members of other ethnic groups and, on the other hand, certain anxieties related to the social status of residents and the development of inter-ethnic relations in recent years. The author also highlights the tasks of the municipal government that are solved by monitoring the social well-being of the urban inter-ethnic community.