The municipality of Sant Boi de Llobregat lies in the province of Barcelona, in Catalonia: according to official INE figures for 1 January 2025 it is home to 85,610 people, over about 21.9 km².
With about 3,909 inhabitants per km², it is one of the most densely populated areas in the country, part of a large metropolitan area. Of the 134 municipalities in the province of Barcelona with at least 5,000 inhabitants, it is number 10 by population.
As the crow flies it lies about 12 km south-west of Barcelona, the provincial capital.
Nearby, within a few dozen kilometres, are other destinations featured in our guides: Montjuïc (10 km), Miró Foundation (11 km), El Raval (12 km), Erasmus in Barcelona (12 km), La Boqueria (12 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 Barcelona.