The county was located in the south-eastern part of Romania, in the Southern Dobruja region, known as Cadrilater.

As a result of Romania's involvement in Bulgaria during the Second Balkan War, Southern Dobruja (the part of Bulgaria north of the Tutrakan - Balchik line) was annexed by Romania in 1913, despite criticism from the political opposition (e.g. the socialist Constantin Dobrogeanu-Gherea), who considered that this act would create for Romania a new and fierce enemy over a 600-km border on its southern flank, where, until then, it had a friendly neighbor whose independence had been obtained simultaneously in the same war.

On September 7, 1940, the former county with the whole Southern Dobruja was returned to Bulgaria (see Treaty of Craiova).

[3] In 1930, the county's urban population was 41,588, of which 39.8% were Bulgarians, 24.1% Turkish, 15.4% Romanians and Aromanians, 6.9% Romanies, 3.6% Gagauz, 3.5% Tatars, 2.1% Greeks, 2.1% Armenians, as well as other minorities.

From the religious point of view, the urban population consisted of 62.1% Eastern Orthodox, 34.1% Muslim, 1.7% Armenian-Gregorian, 1.0% Jewish, as well as other minorities.