Constanța, historically known as Tomis, is the oldest continuously inhabited city in Romania. It was founded around 600 BC. The city is located in the Northern Dobruja region of Romania, on the Black Sea coast. It is the capital of Constanța County and the largest city in the historical region of Dobrogea.
As of the 2011 census, Constanța has a population of 283,872, making it the fifth most populous city in Romania. The Constanța metropolitan area includes 14 localities within 30 km of the city, and with a total population of 425,916 inhabitants, it is one of the largest metropolitan areas in Romania.
The Port of Constanța has an area of 39.26 km² and a length of about 30 km. It is the largest port on the Black Sea, and one of the largest ports in Europe.