Largest cities
Dhaka 10,279,000 pop., 18,627,000 urban aggl.
Chittagong 3,227,000 pop., 4,196,000 urban aggl.
Khulna 719,000 pop., 1,072,000 urban aggl.
Sylhet 532,000 pop., 999,000 urban aggl.
Savar 297,000 pop., 2,242,000 urban aggl.
Highest mountains
Tazing Dong 1,280 m (4,198 ft)
Longest rivers
Brahmaputra-Jamuna 2,900 km (1,802 mi) total, 292 km (181 mi) in Bangladesh
Ganges-Padma 2,480 km (1,541 mi) total, 258 km (160 mi) in Bangladesh
Surma-Meghna 946 km (588 mi) total, 669 km (416 mi) in Bangladesh
Largest lakes
Kaptai Lake (artificial) 263 km² (102 sq mi)
Largest islands
Bhola 1,441 km² (556 sq mi)
Sandwip 762 km² (294 sq mi)
Manpura 373 km² (144 sq mi)
Hatia 371 km² (143 sq mi)