The Una-Sana Canton (; ; ) is a federated state and one of the ten cantons of the Federation of Bosnia and Herzegovina in Bosnia and Herzegovina. It is located in the northwest of the country, a region known as Bosanska Krajina, and has been named after the rivers Una and Sana. Its cantonal seat is the city of Bihać.

The canton is bordered by Republika Srpska from the east, the Canton 10 from the southeast, and Croatia from the south, west, and north. The majority of the population is Bosniak (90%).

Municipalities The Una-Sana Canton consists of eight municipalities: Coat of arms Municipality/City Population (2013) Area (km2) Cazin 66,149 356 Bihać 56,261 900 Sanski Most 41,475 781 Velika Kladuša 40,419 331 Bosanska Krupa 25,545 561 Bužim 19,340 129 Ključ 16,744 358 Bosanski Petrovac 7,328 709 Total 273,261 4,201

History The region has been inhabited since prehistoric times, as evidenced by numerous archaeological sites, ancient fortresses, and medieval towns. Settlements like Bihać, first mentioned by Béla IV of Hungary in 1260, and Ključ, referenced in 1322 by Stephen II, Ban of Bosnia, highlight the area's medieval significance.

In 1463, the Ottoman Empire conquered Ključ, marking the fall of the medieval Bosnian state. During Ottoman rule, fortifications such as Ostrožac Castle, dating back to the 13th century, were expanded to strengthen the empire's hold on the region.

Following the Ottoman period, the area became part of the Austro-Hungarian Empire and later the Kingdom of Yugoslavia, Independent State of Croatia, and finally the Socialist Federal Republic of Yugoslavia.

During the Bosnian War (1992–1995), the region experienced significant conflict, including the Siege of Bihać and the founding of the Autonomous Province of Western Bosnia proto-state, which led to the Intra-Bosnian Muslim War (1993–1995).

The canton was officially established on June 12, 1996, following the Washington Agreement.

Geography The Una and Sana rivers are central to the canton's geography. The Una flows along the western border, while the Sana river flows along the eastern part. Covering an area of 4,201 square kilometers, Una-Sana Canton accounts for about 8.1% of Bosnia and Herzegovina's total territory. The region's climate is classified as Cfb, characterized by moderate cold winters and warm summers.

Government Like all cantons of the Federation of Bosnia and Herzegovina, the head of the Una-Sana Canton is called the Prime Minister. The current Prime Minister is Mustafa Ružnić, having served since 23 September 2025. The legislative body of the Canton is the Assembly of the Una-Sana Canton, which has 30 members.

Demographics

The liberalisation of the labour market in Germany in 2017 led to a significant wave of emigration from Bosnia and Herzegovina. The Una-Sana Canton has been the leading region in terms of emigration within the country. In 2021, the Cantonal Ministry of Internal Affairs issued 15,900 certificates of impunity for the purpose of working abroad. This marked an increase from around 13,500 certificates issued in 2017, 14,800 in 2018, and 12,200 in 2019. In 2020, the number of certificates issued was around 9,200. Furthermore, in 2021, approximately 1,500 children enrolled in the first year of primary school, which is 2,000 fewer than 20 years ago.

2013 Census Municipality/City Nationality Total Bosniaks % Croats % Serbs % Bihać 49,550 88.07 3265 5.80 910 1.61 56,261 Bosanska Krupa 23,578 92.29 66 0.25 1,260 4.93 25,545 Bosanski Petrovac 3,179 43.38 26 0.35 3,996 54.53 7,328 Bužim 19,207 99.31 8 0.04 1 0.005 19,340 Cazin 63,463 95.93 320 0.48 29 0.04 66,149 Ključ 16,130 96.33 30 0.17 273 1.63 16,744 Sanski Most 38,344 92.45 722 1.74 1837 4.42 41,475 Velika Kladuša 32,561 80.55 636 1.57 146 0.36 40,419 Canton 246,012 90.03 5,073 1.86 8,452 3.09 273,261

Infrastructure Due to the proximity to Croatia and its narrow northern outline, various important traffic lines between Zagreb and the Adriatic traverse the Una-Sana canton, such as the railway line Novi Grad-Bihać-Knin. The airport of Željava is located near Bihać and is located right between the Bosnian and Croatian border.

Economy Since the 1990s, the region's economy has shifted due to war, migration, and reconstruction. Though among the less industrialized cantons in the Federation, it has strong potential in renewable energy, tourism, and border trade with Croatia. Agriculture remains key in rural areas like Cazin, Bosanska Krupa, and Sanski Most, while forestry and timber exports are also significant. Industry is centered in Bihać, Velika Kladuša, and Cazin. Tourism is growing, led by the Una National Park.

Labor migration is high, with over 10,000 people leaving annually for work in the EU, making it one of the most migration-prone areas in Bosnia and Herzegovina.

See also Political divisions of Bosnia and Herzegovina Bosanska Krajina List of heads of the Una-Sana Canton

Footnotes

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