Tambacounda department is one of the 46 departments of Senegal, and one of the four making up the Tambacounda region. It formerly covered an area of 20,328 km² and in 2013 had an estimated population of 283,769. However in 2005 it was reduced in size to create the new Koumpentoum department.
The department has one only urban commune, that of Tambacounda.
The rest of the department is divided into three arrondissements, which in turn are divided into rural districts (communautés rurales):
Koussanar Arrondissement:
Koussanar
Sinthiou Malème
Makacolibantang Arrondissement:
Makacolibantang
Niani Toucouleur
Ndoga Babacar
Missirah Arrondissement:
Dialacoto
Missirah
Néttéboulou
Historic sites
Railway Station and Railway Hotel in Tambacounda
The building housing the Prefecture in Tambacounda
Tata of Maba Diakhou Ba at Ndoungoussine
Wells and historic remains at Ndoungoussine
Megalithic site at Thiékène Boussoura
Megalithic site at Kodiam
Megalithic site at Saré Diouldé
Megalithic site at Saré Sékourou