Megalopoli (Greek: Μεγαλόπολη) is a town in the southwestern part of the regional unit of Arcadia, southern Greece. It is located in the same site as ancient Megalopolis (Ancient Greek: Μεγαλόπολις). "Megalopolis" means great city in Ancient Greek. When it was founded in 371 BC, it was the first large urbanization in rustic Arcadia. Its theater had a capacity of 20,000 visitors, making it one of the largest ancient Greek theaters. Megalopoli has several schools, shops, churches, hotels and other services. The population of Megalopoli in 2001 was 5,135 for the town proper.