The region of Dobruja is a major center of Kalderash settlement, as well as, Wallachia and the Romanian-Bulgarian border regions. Bilingualism of Kalderash Romani and Romanian is prevalent among the Kalderash of Romania.
Dobruja is a key area for Kalderash communities, including those residing in Wallachia and bordering areas with Romania and Bulgaria.  Kalderash people often speak both Romani and Romanian.