The Croats were in the majority in most villages and in the region's eastern part, whereas the Serbs dominated in the northwest. Vukovar's population was ethnically mixed and had 28 ethnic groups before the war. Since the boundaries of the municipality have changed a few times, there are significant differences in the population census between 1961 and 1971, and 1991 and 2001. thumb|left|Workers' Hall after the reconstruction. Particularly since the war in Croatia, much of the native Croat population has moved to other areas of Croatia or emigrated to Western Europe (notably Germany or Austria) and many Serbs have either moved to Serbia or to Canada and Western Europe.
The Croats were in the majority in most villages and in the region's eastern part, whereas the Serbs dominated in the northwest. Vukovar's population was ethnically mixed and had 28 ethnic groups before the war. Since the boundaries of the municipality have changed a few times, there are significant differences in the population census between 1961 and 1971, and 1991 and 2001. thumb|left|Workers' Hall after the reconstruction. Particularly since the war in Croatia, much of the native Croat population has moved to other areas of Croatia or emigrated to Western Europe (notably Germany or Austria) and many Serbs have either moved to Serbia or to Canada and Western Europe.