Ethnic groups by confession Total Montenegrins Serbs Bosniaks Albanians Roma Croats Number % Number % Number % Number % Number % Number % Number % Eastern Orthodox 446,858 72.1 248,523 88.7 177,091 98.3 11 0.0 37 0.1 516 8.2 90 1.5 Islam 118,477 19.1 12,931 4.6 79 0.0 74,343 99.7 22,267 73.1 5,034 80.5 3 0.0 Catholic 21,299 3.4 5,667 2.0 116 0.6 3 0.0 7,954 26.1 13 0.2 5,527 91.8 Protestantism 1,601 0.4 921 0.3 262 0.1 36 0.1 2 0.0 2 0.0 Atheism/Agnosticism 9,005 3.3 6,393 2.3 697 0.4 108 0.1 35 0.1 1 0.0 224 3.7