Population in Cologne compared to Siena
Cologne: 1.024.621 (Zensus 2022)
Siena: 52.991 (2025)
In Cologne there are about 19.3 time more people living, as in Siena.
Size of Cologne compared to Siena
Cologne: ca. 405 km²
Siena: ca. 119 km²
Cologne Finland has a land area approximately. 3.4 times larger than that of Siena.
Population density of Cologne compared to Siena
Cologne: ca. 2.530 Einwohner/km²
Siena: ca. 447 Einwohner/km²
The population density of Cologne is about5.7 times higher, than the one of Siena.
City comparison between Cologne and other cities
more about Cologne
more about Siena