The municipality of Sant Joan Despí lies in the province of Barcelona, in Catalonia: according to official INE figures for 1 January 2025 it is home to 35,926 people, over about 4.8 km².
With about 7,485 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 29 by population.
As the crow flies it lies about 9 km south-west of Barcelona, the provincial capital.
Nearby, within a few dozen kilometres, are other destinations featured in our guides: Montjuïc (9 km), Miró Foundation (9 km), Erasmus in Barcelona (9 km), El Raval (9 km), Shopping (9 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.