The municipality of Urduliz lies in the province of Biscay, in the Basque Country: according to official INE figures for 1 January 2025 it is home to 6,128 people, over about 7.9 km².
Density, at about 776 inhabitants per km², is that of a populous urban area, with residential districts, services and businesses. Of the 35 municipalities in the province of Biscay with at least 5,000 inhabitants, it is number 33 by population.
As the crow flies it lies about 13 km north of Bilbao, the provincial capital.
Nearby, within a few dozen kilometres, are other destinations featured in our guides: Erasmus in Bilbao (11 km), Guggenheim (11 km), Bilbao (12 km), Castro Urdiales (22 km).
Below you will find a map of neighbouring municipalities, the weather, places to stay in the area and a link to all the municipalities in the province of Biscay.