WBenin is divided into 12 departments, and subdivided into 77 communes. In 1999, the previous six departments were each split into two halves, forming the current 12. Each of the six new departments was assigned a capital in 2008.
WAlibori is the largest and northernmost department of Benin. Externally the department borders the countries of Burkina Faso, Niger, and Nigeria, and internally the departments of Atakora and Borgou. The department of Alibori was created in 1999 when it was split off from Borgou Department and is named after the Alibori River.
WAtakora is the northwesternmost department of Benin. Externally it borders Togo to the west and Burkina Faso to the north; internally it borders the departments of Alibori, Borgou and Donga. Major towns in the Atakora include Natitingou and Tanguiéta, and the major tourist areas include the Tata Somba houses, Pendjari National Park, and various waterfalls. The department of Atakora was bifurcated in 1999, with its southern territory removed to form the newly created Donga Department. The capital of Atakora Department is Natitingou; it is after the Atakora Mountains,
WAtlantique is one of the twelve departments in Benin. The department is located in south-central Benin along the Atlantic coast, between Mono and Kouffo Department in the west, Zou in the north, and Ouémé in the east. The department of Atlantique was bifurcated in 1999 when some of its territories was transferred to the newly formed Littoral Department.
WBorgou is one of the twelve departments of Benin. Borgou borders the country of Nigeria and the departments of Alibori, Atakora, Collines and Donga. The capital of Borgou is Parakou. The department of Borgou was bifurcated in 1999, with its northern territory transferred to the newly created Alibori Department.
WCollines is one of the twelve departments of Benin, located in the centre of the country; its name means "hills" in French. The department of Collines was created in 1999 when it was split off from Zou Department. In 2016, the city of Dassa-Zoumé became the department's capital.
WDonga is one of the twelve departments of Benin; its capital is Djougou, the fourth largest city in the country. The department of Donga was created in 1999 when it was split off from Atakora Department. Donga is subdivided into five communes, each centered at one of the principal towns: Bassila, Copargo, Djougou Rural, Djougou Urban and Ouaké.
WKouffo or Couffo is one of the twelve departments of Benin. Kouffo borders the country of Togo and the departments of Mono, Zou and Atlantique. Since 2008, the department's capital has been Aplahoué. The department of Kouffo was created in 1999 when it was split off from Mono Department.
WLittoral is one of the twelve departments of Benin. At 79 km2 (31 sq mi), Littoral is the smallest department in the country. Its capital is Cotonou, Benin's largest city. The department was created in 1999 with the splitting up of territories of Atlantique Department.
WMono is one of the twelve departments of Benin, with its capital at Lokossa. It is named for the Mono River which forms much of the border with Togo. The northern areas of the department were split off to create the newly formed Kouffo Department in 1999. Mono is subdivided into six communes, each centred at one of the principal towns, namely, Athiémè, Bopa, Comè, Grand-Popo, Houéyogbé and Lokossa. It has an area of 1,396 square kilometres (539 sq mi).
WOuémé is one of the twelve departments of Benin, containing the capital of the country Porto Novo. It is subdivided into nine communes, each centred at one of the principal towns: Adjarra, Adjohoun, Aguégués, Akpro-Missérété, Avrankou, Bonou, Dangbo, Porto-Novo and Sèmè-Kpodji. In 1999, the northern section of Ouémé was split off to form the department of Plateau.
WPlateau is one of the twelve departments of Benin. The department of Plateau was created in 1999 with an area of 2,835 square kilometres (1,095 sq mi) when it was split off from Ouémé Department. Plateau is subdivided into five communes, each centred at one of the principal towns: Adja-Ouèrè, Ifangni, Kétou, Pobè and Sakété.
WZou is one of the twelve departments of Benin, named for the Zou River which travels through the department before emptying into the Atlantic in the south of the country. The department of Zou was split in two in 1999, with the northern territory transferred to the newly created Collines Department. The capital of Zou is Abomey. Zou is subdivided into nine communes, each centred at one of the principal towns: Abomey, Agbangnizoun, Bohicon, Cové, Djidja, Ouinhi, Za-Kpota, Zangnanado and Zogbodomey.