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First-order subdivisions

1,726 articles

Bukhara Region

Bukhara Region (Buxoro viloyati) is a southwestern Uzbekistan region of 40,320 km2 with capital Bukhara city, about 2.09 million people, an irrigated cotton-wheat oasis economy, petrochemicals, and growing solar, wind, and tourism sectors.

Bukidnon

Bukidnon: landlocked plateau province in Northern Mindanao, Philippines; capital Malaybalay City; 10,498.59 km2, fourth-largest province; population 1,541,308 (2020); top agricultural producer, home of the Kaamulan festival and Mount Kitanglad.

Bulacan

Bulacan is a province of Central Luzon, Philippines, north of Manila, capital Malolos. 2020 population 3,708,890 (2nd of 81 provinces); site of the 1899 Malolos Republic; largest Central Luzon economy; MRT-7, NSCR, and a planned 200-million-passenger airport.

Bulawayo Province

Bulawayo Metropolitan Province, one of Zimbabwe's two metropolitan provinces with Harare, surrounds the city of Bulawayo, the country's second largest city and former industrial hub; 665,940 people (2022), 439 km2, bordered by Matabeleland North and South.

Bururi Province

Bururi Province, former southern province of Burundi, one of eight created by the 1962 law; merged into Burunga Province in 2025; Bururi commune had 182,929 inhabitants in the 2024 census.

Buryat-Mongolian Autonomous Soviet Socialist Republic

The Buryat-Mongolian Autonomous Soviet Socialist Republic (Buryat ASSR after 1958) was an autonomous republic of the Russian SFSR, created in 1923 as the Buryat homeland around Lake Baikal.

Buryatia

Republic of Buryatia (Республика Бурятия), Russian federal subject in Eastern Siberia around Lake Baikal, capital Ulan-Ude. Formed as Buryat-Mongol ASSR in 1923, renamed 1958; population 971,100 (2025), industry and livestock farming dominate.

Buskerud

Buskerud, Norwegian county (fylke) code 33, re-established 1 January 2024 from Viken's division; 18 municipalities, 272,981 inhabitants (2026), seat Drammen, area 14,694 km2.

Buzău

Buzău (Județul Buzău, RO-BZ) is a county in southeastern Romania with seat at Buzău city; 393,136 residents in 2026, 87 administrative units, on the E85 and railway line 500 corridors in the South-East region.

Byelorussian Soviet Socialist Republic (Беларуская Савецкая Сацыялістычная Рэспубліка)

Byelorussian Soviet Socialist Republic (Беларуская Савецкая Сацыялістычная Рэспубліка), a founding Soviet republic 1919–1991 also called the BSSR: borders enlarged 1924/1926, wartime losses of a quarter of its population, UN seat 1945, independence 1991.

Cabinda Province

Cabinda Province is Angola's oil-rich exclave, separated from Angola by DRC territory, bordered by the Republic of Congo and DRC. 7,283 km², capital Cabinda, 903,370 people (2024 census), former Portuguese protectorate under the 1885 Simulambuco treaty, with a 40-year FLEC separatist conflict.

Cabo Delgado Province

Cabo Delgado, northeastern Mozambique province, capital Pemba, on the Tanzanian border. Rich in gas and minerals, epicenter of the Islamic State Mozambique insurgency since 2017 and mass displacement.

Cagayan

Cagayan is a Philippine province on the northeastern tip of Luzon, capital Tuguegarao, population 1,268,603 (2020), area 9,002.70 sq km, drained by the 330-km Cagayan River; distinct from Cagayan de Oro and the Cagayan Valley region.

Cagayan Valley

Cagayan Valley (Region II) is a Philippine administrative region in northeastern Luzon with five provinces (Batanes, Cagayan, Isabela, Nueva Vizcaya, Quirino), 3,777,608 people (2024), and the Cagayan River valley.

Cairo Governorate

Cairo Governorate (محافظة القاهرة) is the Egyptian province containing the capital city Cairo: 10,478,084 residents (Jan 2026), 3,085 km2, 38 districts in 4 areas, National Day July 6 (founded 969 AD), governor Ibrahim Saber Khalil since July 2024.

Calabarzon

Calabarzon (Region IV-A) is a Philippine administrative region in southwestern Luzon comprising Cavite, Laguna, Batangas, Rizal, and Quezon, created by Executive Order 103 in 2002; the country's most populous region with 16.93 million people in 2024.

Calabria

Calabria, Italy's southernmost mainland region at the tip of the boot: five provinces, 404 comuni, 1.83 million residents, lowest Italian GDP per capita (21.7k euro, 2024), EU-high deprivation, high seismic risk, and a growing tourism sector.

Călăraşi

Călărași (Județul Călărași), a county in southeastern Romania on the Danube, seat at Călărași city; created 1981, area 5,088 km², agrarian-industrial economy, distinct from Moldova's Călărași district.

California's 12th congressional district

California's 12th congressional district, a Bay Area U.S. House seat: San Francisco-based under 2020 Commission maps (771,010 residents), reconfigured to Oakland and Alameda County under Proposition 50 (2025), represented by Democrat Lateefah Simon.

Camarines Sur

Camarines Sur, a province of the Bicol Region, Philippines, capital Pili. Most populous Bicol province (2,063,314 in 2024 census), founded 1579, largest regional economy, home to Naga City and the sinarapan fish.

Campania

Campania, Italian region in southwest Italy with capital Naples, five provinces (Napoli, Caserta, Benevento, Avellino, Salerno), about 5.8 million people, youngest region in Italy, GDP per capita EUR 23,316, five UNESCO sites, president Roberto Fico.

Campeche

Campeche, formally the Free and Sovereign State of Campeche, is a Mexican state on the Yucatán Peninsula, created in 1863 with its capital at San Francisco de Campeche.

Canada (New France)

Canada (New France) was the St. Lawrence Valley colony founded at Québec by Champlain in 1608, a royal province from 1663, governed by a governor and intendant, ceded to Britain in 1763.

Canadian postal abbreviations for provinces and territories

Two-letter Canada Post codes (AB, BC, QC, YT, and so on) representing Canada's ten provinces and three territories in addresses; identical in English and French, distinct from traditional abbreviations and postal code letters.

Çanakkale

Çanakkale: Turkish province and city on both shores of the Çanakkale Strait (Dardanelles), 9,933 km², population 573,976 (2025). Home of ancient Troia, founded around Kala-i Sultaniye castle (1462), site of the 1915 Gallipoli campaign.

Canton of Aargau

Canton of Aargau (Kanton Aargau), Swiss canton created by Napoleon in 1803 with capital Aarau; conquered from the Habsburgs in 1415; about 744,000 residents, industrial center near Zurich.

Canton of Bern

Canton of Bern (Kanton Bern, canton de Berne), a bilingual German-French Swiss canton containing the federal capital Bern. Second largest canton by area (595,851 ha), 1,076,127 residents in 2025, joined the Confederation in 1353, Bernese Jura special status.

Canton of Geneva

Canton of Geneva (République et canton de Genève), Switzerland's 22nd canton since 1815, a French enclave of 282 km² with about 537,000 residents (41.9% foreign), a seven-member Conseil d'État, international organisations, and 116,000 cross-border workers.

Canton of Lucerne

Canton of Lucerne (Kanton Luzern): Swiss canton, fourth member of the Confederation (joined 1332). 441,500 residents (end 2025), 79 municipalities, area 1,494 km², capital Lucerne, economic center of central Switzerland.

Canton of St. Gallen

Canton of St. Gallen (Kanton St. Gallen), Swiss canton founded 1803 under Napoleon's Mediation, capital St. Gallen city. Fifth-largest by population (544,040 in 2025); known for the UNESCO Abbey of St Gall, embroidery, and textile industry.