5.4 million (of which 51.5 % are female)
Ethnic mix of population:
Slovaks (85.8 %), Hungarians (9.7 %), Roma (1.7 %), Czechs (0.8 %), Ruthenians (0.4 %), Ukrainians (0.2 %), Germans (0.1 %), others (0.2 %), unknown (1.1 %).
Population and their religions:
Roman Catholic (68.9 %), Evangelical Lutheran of Augsburg Confession (6.9 %), Greek Catholic (4.1 %), Reformed Christian (2.0 %), Orthodox (0.9 %), Jews (0.04 %), others (4.1 %), without denomination (13.0 %).
