Population in Cologne compared to Vienna
Cologne: 1.024.621 (Zensus 2022)
Vienna: 2.028.499 (2025)
In Cologne the population is about 51% of the population of Vienna.
Size of Cologne compared to Vienna
Cologne: ca. 405 km²
Vienna: ca. 415 km²
Cologne has about the same land area as Vienna.
Population density of Cologne compared to Vienna
Cologne: ca. 2.530 Einwohner/km²
Vienna: ca. 5.120 Einwohner/km²
The population density of Cologne is about 49% of that of Vienna.
City comparison between Cologne and other cities
more about Cologne
more about Vienna