Urretxu is a municipality in Spain, in the province of Gipuzkoa, in the Basque Country. On 1 January 2025 it had 6,730 inhabitants according to the INE municipal register (padrón), over an area of about 7.7 km².
Density, at about 874 inhabitants per km², is that of a populous urban area, with residential districts, services and businesses. Of the 34 municipalities in the province of Gipuzkoa with at least 5,000 inhabitants, it is number 26 by population.
As the crow flies it lies about 36 km south-west of San Sebastián, the provincial capital. The nearest major city is Bilbao, about 50 km away.
Nearby, within a few dozen kilometres, are other destinations featured in our guides: San Sebastián (38 km), Pintxos and food (38 km), Film festival (38 km), Vitoria-Gasteiz (39 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 Gipuzkoa.