The first part of this paper deals with the chosen aspects of the population social mobility in the Sisak and Petrinja regions in the period between 1961 and 2001: industrial employment, deagrarization and level of education. After that, the authors research the interdependence of employment and other two aspects of social mobility. Therefore, the statistic indicators of the correlation strength between the mentioned phenomena have been figured out (coefficient of simple linear correlation). The results pointed to the existence of a weak positive correlation between the industrial employment and deagrarization in the Sisak region, that is, to a medium strong correlation in the Petrinja region. Somewhat stronger correlation was found between the industrial employment and education of the population.