Tolosa, in the Basque Country, is part of the province of Gipuzkoa. The municipality covers about 38.2 km² and had 20,070 inhabitants on 1 January 2025.
Density, at about 525 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 8 by population.
As the crow flies it lies about 22 km south of San Sebastián, the provincial capital. The nearest major city is Bilbao, about 70 km away.
Nearby, within a few dozen kilometres, are other destinations featured in our guides: San Sebastián (25 km), Pintxos and food (25 km), Film festival (26 km), Hondarribia (37 km).
To explore the area, use the map of neighbouring municipalities and the accommodation options in and around Tolosa; all the municipalities in the province of Gipuzkoa are listed on their own page.