Population in Portland compared to Siena
Portland: 68.408 (2020)
Siena: 52.991 (2025)
In Portland there are about 1.3 time more people living, as in Siena.
Size of Portland compared to Siena
Portland: ca. 180 km²
Siena: ca. 119 km²
Portland Finland has a land area approximately. 1.5 times larger than that of Siena.
Population density of Portland compared to Siena
Portland: ca. 1.226 Einwohner/km²
Siena: ca. 447 Einwohner/km²
The population density of Portland is about2.7 times higher, than the one of Siena.
City comparison between Portland and other cities
more about Portland (Maine, USA)
more about Siena (Tuscany, Italy)