Population in Siena compared to Castrillón
Siena: 52.991 (2025)
Castrillón: 21.998 (2025)
In Siena there are about 2.4 time more people living, as in Castrillón.
Size of Siena compared to Castrillón
Siena: ca. 119 km²
Castrillón: ca. 55 km²
Siena Finland has a land area approximately. 2.1 times larger than that of Castrillón.
Population density of Siena compared to Castrillón
Siena: ca. 447 Einwohner/km²
Castrillón: ca. 397 Einwohner/km²
Siena and Siena have about the same population density.
City comparison between Siena and other cities
more about Siena (Tuscany, Italy)
more about Castrillón (Asturias, Spain)