The Vukovar-Srijem County is located in the far north-east of the Republic of Croatia. It lies in the interchange between the rivers Danube and Sava, and occupies parts of the historic provinces of Eastern Slavonia and Western Srijem. The area of Vukovar-Srijem County is 2448 km². There are small differences in the area. The highest point is Čukala near Ilok (294 m above sea level), and the lowest in Posavina – Spačva (78 m). In the east, gentle slopes of the hill “Fruška gora” slope down to Vukovar. From the west, from the mountain Dilj, there is a Vinkovaci-Đakovo plain.
This area carries important river and land routes and crosses international traffic routes from the east to the west along the Danube River, and from the north across the Sava River to the Adriatic Sea.