In her master’s thesis, the author uses available sources in demographic statistics and relevant literature to analyze and interprets how the socio-economic processes, migrations and in particular the war conflicts through the history, influenced the number and structure changes of the population in the area of today’s village and municipality of Voćin. The first part of the thesis presents a historical summary of the development of the Voćin area from the first written records to the 16th century, and changes in population size form the early 16th century to the first modern census in 1857. The main emphasis of this thesis is the analysis of the census population changes in the Voćin area from the first modern census in 1857 to the census in 2001 in aspect of nationality, religion, age, sex, mother language and literacy. Furthermore, this thesis presents detailed analysis of the demographics changes after the Croatian War of Independence during which the area of the municipality of Voćin was occupied by the Serbian paramilitary forces and Serb rebels for four mounts in the second half of 1991. After the war Serb majority became minority and was replaced by Croat refugees from central Bosnia, Vojvodina and Letnica.