Population in Flensburg compared to Siena
Flensburg: 96.326 (2024)
Siena: 52.991 (2025)
In Flensburg there are about 1.8 time more people living, as in Siena.
Size of Flensburg compared to Siena
Flensburg: ca. 57 km²
Siena: ca. 119 km²
Flensburg has a land area approximately 52% smaller than Siena
Population density of Flensburg compared to Siena
Flensburg: ca. 1.598 Einwohner/km²
Siena: ca. 447 Einwohner/km²
The population density of Flensburg is about3.6 times higher, than the one of Siena.
City comparison between Flensburg and other cities
more about Flensburg
more about Siena