Riyadh and Zhengzhou
Comparison by area and population

Saudi Arabia (capital)

Riyadh

Saudi Arabia

China

Zhengzhou

China

Population

5 700 000
(2013)

5 700 000
(2013)

8 626 505
(2010)

8 626 505
(2010)

Area

1 554 km²

1 554 km²

7 446 km²

7 446 km²

Population density

3 667.95
/km²

3 667.95/km²

1 158.54/km²

1 158.54
/km²

Map

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Riyadh and other cities

Zhengzhou and other cities