Karachi and Lanzhou
Comparison by area and population

Pakistan

Karachi

Pakistan

China

Lanzhou

China

Population

13 205 339
(2010)

13 205 339
(2010)

3 310 000
(2007)

3 310 000
(2007)

Area

3 530 km²

3 530 km²

13 100 km²

13 100 km²

Population density

3 740.89
/km²

3 740.89/km²

252.67/km²

252.67
/km²

Map

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Karachi and other cities

Lanzhou and other cities