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Ključ, Una-Sana Canton

Panoramic view
Panoramic view
Official seal of Ključ
Location of Ključ within Bosnia and Herzegovina.
Location of Ključ within Bosnia and Herzegovina.
Country  Bosnia and Herzegovina
Entity Federation
Canton Una-Sana
 • Municipality president Nedžad Zukanović
 • Total 358 km2 (138 sq mi)
Population (2013 census)
 • Total 18,714
Time zone CET (UTC+1)
 • Summer (DST) CEST (UTC+2)
Area code(s) +3873766XXXX

Ključ (pronounced ) is a town and municipality by the same name in western Bosnia and Herzegovina. It is located in the Federation of Bosnia and Herzegovina, specifically the Una-Sana Canton. The name of the town and the municipality translates to "Key" in Bosnian.


Human settlements have existed in the area long before the Roman Era. The town itself is first mentioned in 1322 in the documents of ban Stjepan II Kotromanić. It was conquered by the Ottoman Empire in 1463 as the last Royal Bosnian fortress.

From 1929 to 1941, Ključ was part of the Vrbas Banovina of the Kingdom of Yugoslavia.

Kljuc is was first mentioned in 1322. In 1463, during the Ottoman invasion of Bosnia, the last Bosnian king Stjepan Tomasevic, took refuge in the city. His surrender and execution marked the downfall of the medieval Bosnian state.

At the start of the civil war in Bosnia (1992-1995), the Kljuc area was held by Bosnian Serb forces. In the summer of 1995, the Bosnian Muslim Army forces attacked and occupied Kljuc. As a result, most of the pre-war ethnic Serb population fled. After the Dayton Peace Accords, the town belongs to the Federation of Bosnia and Herzegovina. Today, it is estimated that about 97% of the population of Kljuc are Bosniaks.


According to the last official census in 1991, the municipality had a key 37,233 inhabitants, distributed in 61 settlements.

Ethnic Composition (1991)
Serbs 18,438 (49.52%)
Bosniaks 17,714 (47.57%)
Croats 336 (0.90%)
Yugoslavs 545 (1.46%)
others 200 (0.55%)
Ethnic Composition (1971)
Total 39,966
Serbs 23,892 (59.78%)
Bosniaks 15,226 (38.09%)
Croats 534 (1.33%)
Yugoslavs 131 (0.32%)
others 183 (0.48%)


It is located a short distance south from Sanski Most.

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