The municipality of Piera lies in the province of Barcelona, in Catalonia: according to official INE figures for 1 January 2025 it is home to 17,880 people, over about 53.9 km².
Density, at about 332 inhabitants per km², is that of a populous urban area, with residential districts, services and businesses. Of the 134 municipalities in the province of Barcelona with at least 5,000 inhabitants, it is number 56 by population.
As the crow flies it lies about 36 km west of Barcelona, the provincial capital. The nearest major city is Barcelona, about 40 km away.
Nearby, within a few dozen kilometres, are other destinations featured in our guides: Terrassa (22 km), Sabadell (30 km), Film festival (31 km), Carnival (31 km), Sitges (31 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.