Moreover, the largely Albanian population of Preševo, Bujanovac and Medvedja municipalities boycotted the census, too. Thus, the actual number of Muslims in Serbia is likely to be at least about 50,000 higher. Largest concentration of Muslims in Serbia could be found in the municipalities of Novi Pazar, Tutin and Sjenica in the Sandžak region, and in the municipalities of Preševo and Bujanovac in the Preševo Valley.