Population in Rennes compared to Siena
Rennes: 230.890 (2022)
Siena: 52.991 (2025)
In Rennes there are about 4.4 time more people living, as in Siena.
Size of Rennes compared to Siena
Rennes: ca. 50 km²
Siena: ca. 119 km²
Rennes has a land area approximately 57% smaller than Siena
Population density of Rennes compared to Siena
Rennes: ca. 4.582 Einwohner/km²
Siena: ca. 447 Einwohner/km²
The population density of Rennes is about10.2 times higher, than the one of Siena.
City comparison between Rennes and other cities
more about Rennes (Brittany, France)
more about Siena (Tuscany, Italy)