The changes in the population number of Banat were frequent, because the periods of demographic and economic prosperity were followed by the periods of recession and depopulation. Major demographic changes were caused by moving of people, wars, epidemics and extinction, elemental and organized migrations, changes of countries and their borders, different economical changes, industrializations, urbanizations etc. Some of these demographic factors have a positive effect, and some of them have a negative effect on the present state of Banat population. Border region of Banat consists of 9 municipalities. The main aim in the article is a detailed analysis of border municipalities in Banat: Novi Kneževac, Čoka, Kikinda, Nova Crnja, Žitište, Sečanj, Plandište, Vršac and Bela Crkva in order to define the present condition. The changes in the population number of border regions in Banat, obtained in the last four censuses, have shown that all municipalities record a decreasing trend. The paper made a detailed demographic analysis, which comprises changes in the population number, population structure, households, population growth and migrations. .