Piraeus is located in the region of Attica. The Piraeus Regional Unity consists of the homonymous municipality and four more municipalities (Municipality of Nice – Agios Ioannis Renti, Municipality of Korydallos, Municipality of Keratsini – Drapetsona, Municipality of Perama), with a total population of 448,997 and an area of 50,4 km. It’s the 3rd largest city in Greece. The center of Piraeus is about 9 kilometers away from the center of Athens, which is a historic seaport.