Population in Mainz compared to Castro Urdiales
Mainz: 224.684 (2022)
Castro Urdiales: 33.450 (2025)
In Mainz there are about 6.7 time more people living, as in Castro Urdiales.
Size of Mainz compared to Castro Urdiales
Mainz: ca. 98 km²
Castro Urdiales: ca. 97 km²
Mainz has about the same land area as Castro Urdiales.
Population density of Mainz compared to Castro Urdiales
Mainz: ca. 2.299 Einwohner/km²
Castro Urdiales: ca. 346 Einwohner/km²
The population density of Mainz is about6.6 times higher, than the one of Castro Urdiales.
City comparison between Mainz and other cities
more about Mainz (Rhineland-Palatinate, Germany)
more about Castro Urdiales (Cantabria, Spain)