in the middle of the historical region of Volhynia which is indicated on its coat of arms with a white cross on a red background. Volhynia was completely partitioned after the Soviet occupation of Poland in September 1939 and divided between three oblasts, Volyn, Rivne, and Ternopil, with some additional eastern portions in Zhytomyr Oblast.

The relief of the region varies, its northern portion lies in the Polesian Lowland,