Premià de Mar is a municipality in the comarca of the Maresme in Catalonia. It is situated on the coast between El Masnou and Vilassa…Premià de Mar is a municipality in the comarca of the Maresme in Catalonia. It is situated on the coast between El Masnou and Vilassar de Mar, to the north-east of Barcelona. The town is both a tourist centre and a dormitory town for Barcelona.