Hrvatska Kostajnica (pronounced ; German: Castanowitz; Italian: Costainizza), often just Kostajnica, is a small town in central Croatia. It is located on the Una river in the Sisak-Moslavina County, south of Petrinja and Sisak and across the river from Bosanska Kostajnica in Bosnia and Herzegovina. In the past, Hrvatska Kostajnica was called by different names, Koztainicha, Kaztanicha to Costgnanica. The name most likely comes from the word Kostanj (chestnut). The municipality population of 2,756 is composed of the following settlements: More information...
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