
At the 2011 census, Piraeus had a population of 163,688 people, making it the fifth largest municipality in Greece and the second largest (after the municipality of Athens) within the Athens urban area.

The municipality of Piraeus and four other suburban municipalities form the regional unit of Piraeus, sometimes called the Greater Piraeus area, with a total population of 448,997. It is located eight kilometres (5 mi) southwest of Athens' city centre, along the east coast of the Saronic Gulf in the Athens Riviera.

Piraeus ( / p aɪ ˈ r iː ə s, p ɪ ˈ r eɪ ə s/ py- REE-əs, pirr- AY-əs Greek: Πειραιάς Peiraiás Ancient Greek and Katharevousa: Πειραιεύς Peiraieús Ancient:, Katharevousa: ) is a port city within the Athens urban area ("Greater Athens"), in the Attica region of Greece.

Patron saint: Saint Spyridon (12 December)
