Cologne and Johannesburg
Comparison by area and population

Germany

Cologne

Germany

South Africa

Johannesburg

South Africa

Population

1 017 155
(2011)

1 017 155
(2011)

4 434 827
(2011)

4 434 827
(2011)

Area

405 km²

405 km²

1 644 km²

1 644 km²

Population density

2 511.49
/km²

2 511.49/km²

2 697.58/km²

2 697.58
/km²

Map

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Cologne and other cities

Johannesburg and other cities