Xining and Cologne
Comparison by area and population

Xining

China

Cologne

Germany

Population

2 154 000
 (2007)

2 154 000
(2007)

1 017 155
(2011)
1 017 155
 (2011)

Area

7 424 km2

7 424 km2

405 km2
405 km2

Population density

290.14
/km2

290.14/km2

2 511.49/km2
2 511.49
 /km2
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