Аннотация:Regional capitals are an important category of cities in the South of European Russia, where more than a quarter (25.6 %) of the population of the macroregion lives and a significant demographic potential of the region is concentrated. The south of European Russia includes regions with natural population growth which are rare for modern Russia, regions and capitals with high rates of migration growth, as well as territories with an unfavorable demographic situation. To study territories with such a differentiated multidimensional demographic situation, geoinformation technologies were used to consolidate statistical data from various sources, conduct spatial analysis, model and visualize the processes under study. The realization of this request is possible with the use of atlas information systems (AIS), which are actively used in various subject areas, including the study of socio-economic and demographic processes. As part of the research, we have developed an atlas information system “Regional Capitals of the South of European Russia”, consisting of 2 main blocks: a structural block includes a basic GIS platform, a cartographic framework, a geodata database and a modeling and visualization unit responsible for the preparation of cartographic and visual models..