Municipality Prnjavor is situated in the North-Eastern part of Republic of Srpska and stretches between the mountains Motajica on the North and Ljubić on the South. At the fertile plains of the river Ukrina and Vijaka with average height of 160-220 meters above the see level, the territory of the Municipality Prnjavor borders with the municipalities Srbac, Derventa, Doboj, Teslić, Čelinac and Laktaši. By its geographical position, Municipality Prnjavor belongs to the area of the Banja Luka region. Important feature is that Municipality Prnjavor is situated at furthermost East area of Banja Luka region on main road Banja Luka-Prnjavor-Derventa (N-16), regional road Čelinac-Prnjavor-Srbac (R-474) and at the southern part of Municipality railway line Doboj-Banja Luka are passing through it.  Municipality Prnjavor covers area of 631 square kilometers with about 50.000 people in 14.000 households. The Municipality covers 63 inhabited places i.e. 33 local communities and the city area. Majority of population of the Municipality Prnjavor lives at the country while at the territory of the city lives about 10.000 people.