Municipality of Krupanj is located in western Serbia, and it covers a territory of 342 square kilometres with a total of 23 villages (24 communities) and borders with six neighbouring local municipalities: Mali Zvornik, Ljubovija, Osečina, Koceljeva and Sabac. The municipality administratively belongs to the Macva district.
The most important routes are: Krupanj-Loznica-Sabac-Belgrade; Krupanj-Zavlaka-Tekeriš (on Cer) -Šabac Belgrade; Krupanj-Valjevo-Belgrade.
Rađevina and its urban centre Krupanj are located in the western part of Serbia, on the right bank of the river Drina. According to the last census in 2011, the municipality has a population of 17,860, while according to the previous census in 2002 it had 20,632 inhabitants. The town is settled in a valley and surrounded by mountain branches of Boranja, Jagodnja and Sokolska mountain; as a sub-alpine town, it lies south of the 45th parallel 280 m above the sea level. Rivers Bogoštica, Čađavica and Kržava flow through the town and they merge in the centre, making the river Likodra. It is 28 km away from Loznica, 64 km from Sabac,64 km from Valjevo, 135 km from Novi Sad and 150 km from Belgrade.