Hungarians are the largest ethnic minority (7.75%) and are concentrated in the southern and eastern regions of Slovakia.

Other ethnic groups include Roma (1.23%), Czechs, Croats, Rusyns, Ukrainians, Germans, Poles, Gorals, Serbs[11] and Jews (about 2,300 remain of the estimated pre-WWII population of 120,000).

[citation needed] The official state language is Slovak, and Hungarian is widely spoken in the southern regions.

The majority of Slovak citizens (55,76%) practice Roman Catholicism; the second-largest group consider themselves atheists (23.79%).

About 5.27% are Protestants, 4% are Greek Catholics, and 0.93% are Orthodox and Reformed Christian Church 1.56% (2021 census).