Montenegrin 45%, Serbian 28.7%, Bosniak 8.7%, Albanian 4.9%, Muslim 3.3%, Romani 1%, Croat 1%, other 2.6%, unspecified 4.9% (2011 est.)
Serbian 42.9%, Montenegrin (official) 37%, Bosnian 5.3%, Albanian 5.3%, Serbo-Croat 2%, other 3.5%, unspecified 4% (2011 est.)
Age structure:
0-14 years: 18.14% (male 57,402/female 53,217)
15-24 years: 12.78% (male 40,220/female 37,720)
25-54 years: 39.65% (male 120,374/female 121,461)
55-64 years: 13.41% (male 40,099/female 41,670)
65 years and over: 16.02% (2020 est.) (male 42,345/female 55,351)