4,610,000 in Slovakia (2001 census). Population total all countries: 5,007,650.
Western uplands, Bratislava area. Also in Austria, Canada, Croatia, Czech Republic, Hungary, Montenegro, Poland, Romania, Serbia, Ukraine, United States.
1 (National). Statutory national language (1992, Constitution, Art 6(1)).
Slovaks in western and central parts of the speech community can understand Czech [ces].