Population in Oldenburg compared to Siena
Oldenburg: 176.614 (2024)
Siena: 52.991 (2025)
In Oldenburg there are about 3.3 time more people living, as in Siena.
Size of Oldenburg compared to Siena
Oldenburg: ca. 103 km²
Siena: ca. 119 km²
Oldenburg has about the same land area as Siena.
Population density of Oldenburg compared to Siena
Oldenburg: ca. 1.713 Einwohner/km²
Siena: ca. 447 Einwohner/km²
The population density of Oldenburg is about3.8 times higher, than the one of Siena.
City comparison between Oldenburg and other cities
more about Oldenburg
more about Siena