Chicago and Cologne
Comparison by area and population

Chicago

United States

Cologne

Germany

Population

2 719 000
 (2013)

2 719 000
(2013)

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

Area

606 km2

606 km2

405 km2
405 km2

Population density

4 486.80
/km2

4 486.80/km2

2 511.49/km2
2 511.49
 /km2
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