Valle de Trápaga-Trapagaran, in the Basque Country, is part of the province of Biscay. The municipality covers about 12.9 km² and had 11,797 inhabitants on 1 January 2025.
Density, at about 914 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 20 by population.
As the crow flies it lies about 9 km north-west of Bilbao, the provincial capital.
Nearby, within a few dozen kilometres, are other destinations featured in our guides: Erasmus in Bilbao (8 km), Guggenheim (9 km), Bilbao (9 km), Castro Urdiales (18 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.