The systems analytical approach to the study of integrated regional development implies a joint consideration of elements constituting the regional system and of problems associated with specific sets of regional characteristics. This requires the grouping of elementary geographic (or administrative) areas into homogeneous zones in accordance with their socioeconomic characteristics. The purpose of this analysis is to provide planning authorities with guidelines for preparing adequate socioeconomic policies. 

This paper summarizes the results of a classification and grouping of approximately 160 spatial units within the USSR into a small number of homogeneous clusters. It will be of substantive and methodological relevance for scholars engaged in integrated analyses of regional development.