Cologne and Madras
Comparison by area and population

Cologne

Germany

Madras

India

Population

1 017 155
 (2011)

1 017 155
(2011)

4 590 267
(2009)
4 590 267
 (2009)

Area

405 km2

405 km2

181 km2
181 km2

Population density

2 511.49
/km2

2 511.49/km2

25 360.60/km2
25 360.60
 /km2
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