The paper deals with the issues of demographic and functional changes in the municipalities of Srem region, which are the consequence of a complex social-political situation during the nineties of the 20th century. The analysis comprises the period between the last two population censes, when the most dynamic demographic and functional changes in this region took place. The introductory part of the paper is related to population growth which occurred under the strong influence of forced refugee migrations. Second part of the paper deals with the analysis of active population changes by the activities sectors. It also discusses whether, and to which extent, the mechanical inflow of population influenced the changes of active population in Srem region.