Sant Just Desvern is a municipality in Spain, in the province of Barcelona, in Catalonia. On 1 January 2025 it had 21,037 inhabitants according to the INE municipal register (padrón), over an area of about 7.5 km².
With about 2,805 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 46 by population.
As the crow flies it lies about 6 km west of Barcelona, the provincial capital.
Nearby, within a few dozen kilometres, are other destinations featured in our guides: Lifestyle (7 km), Erasmus in Barcelona (7 km), Shopping (7 km), Miró Foundation (7 km), Montjuïc (7 km).
To explore the area, use the map of neighbouring municipalities and the accommodation options in and around Sant Just Desvern; all the municipalities in the province of Barcelona are listed on their own page.