It lies between the lower Danube River and the Black Sea, bordered in the south by Southern Dobruja, which is a part of Bulgaria.

Around 600 BC, the Greeks colonized the Black Sea shore and founded numerous fortresses: Tomis (today's Constanța), Callatis, Histria, Argamum, Heracleea, Aegysus.

The territory fell under Ottoman rule from the mid-15th century until 1878, when it was awarded to Romania for its role in the 1877-78 Russo-Turkish War, and as compensation for the transfer of a region partly overlapping Southern Bessarabia.

[8] The territory of Northern Dobruja now forms the counties of Constanța and Tulcea, with a total area of 15,570 km2 and a current population of slightly under 900,000.

The most important ones are: Ethnic composition The table below shows Romanian statistics throughout the years: Northern Dobruja is represented by two dolphins in the coat of arms of Romania.