Portugalete is a town lying to the west of Bilbao in the province of Biscay in the Autonomous Community of the Basque Country, northern Spain.

Its land area is only 3.21 km², resulting in a population density of 15,908.4 persons/km², the fifth-most densely populated municipality in Spain (following Mislata, L'Hospitalet de Llobregat, Benetússer, and Santa Coloma de Gramenet).

[3] The car ferry is suspended from a frame by wires attached to wheels on tracks above the cabin and moves from one side of the River Nervión to the other (Getxo) via a traction system.

The people sing the song "La Diana Portugaluja" outside the Town Hall in the morning of 15 August to mark the eve of San Roque Day.

Monuments in Portugalete include the 15th century Basílica of Santa María, Salazar's Tower and the town hall in addition to the mediaeval arches and streets in the older part of the town.