Largest cities
Kinshasa 13,493,000 pop.
Mbuji-Mayi 3,493,000 pop.
Lubumbashi 2,750,000 pop.
Highest mountains
Ruwenzori 5,109 m (16,762 ft)
Monte Mikeno 4,437 m (14,557 ft)
Longest rivers
Congo 4,700 km (2,920 mi) total, including sections in Republic of the Congo and Angola
Ubangi-Uele 2,270 km (1,411 mi) total, including parts in Republic of the Congo and Central African Republic
Kasai 2,150 km (1,336 mi) total, with the Angolan section
Kwango 1,770 km (1,100 mi) total, including the Angolan part
Sankuru 1,200 km (746 mi)
Largest lakes
Tanganyika 32,893 km² (12,700 sq mi) total, including parts in Burundi, Tanzania, Zambia
Albert 5,300 km² (2,046 sq mi) total, the largest section is in Uganda
Mweru 5,120 km² (1,977 sq mi) total, including part in Zambia
Kivu 2,700 km² (1,042 sq mi) total, 1,550 km² (598 sq mi) in Dem. Rep. of the Congo
Edward 2,325 km² (898 sq mi) total, including section in Uganda
Largest islands
Sumba (in Congo river) 500 km² (193 sq mi)
Idjwi (in Lake Kivu) 340 km² (131 sq mi)