Gernika-Lumo is a municipality in Spain, in the province of Biscay, in the Basque Country. On 1 January 2025 it had 17,129 inhabitants according to the INE municipal register (padrón), over an area of about 9.8 km².
With about 1,748 inhabitants per km², it is one of the most densely populated areas in the country, part of a large metropolitan area. Of the 35 municipalities in the province of Biscay with at least 5,000 inhabitants, it is number 14 by population.
As the crow flies it lies about 21 km east of Bilbao, the provincial capital. The nearest major city is Bilbao, about 20 km away.
Nearby, within a few dozen kilometres, are other destinations featured in our guides: Guggenheim (20 km), Bilbao (20 km), Erasmus in Bilbao (20 km), Castro Urdiales (43 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.