The population of Slovenia at the 1991 census was 1,962,606. In 2001 the nation had an around population of 1,930,132, giving it an overall population density of 95 persons per sq km.Slovenes, a Slavic ethnic group, constitute about 88 % of the republic’s population.More than 90 % of Slovenia's people are ethnically Slovene. German speakers, who formed the elite during the Habsburg era, vanished entirely after World War II. The 1954 agreement over Trieste has left a few thousand Italian speakers in Istria, and Prekmurje has a small Hungarian minority.These autochthonous Italians and Magyars enjoy legally guaranteed rights, including parliamentary representation.

The majority of Slovenia's population is Slovene .Hungarians and Italians have the status of indigenous minorities under the Slovenian Constitution, which guarantees them seats in the National Assembly. Most other minority groups, particularly those from the former Yugoslavia, immigrated after World War II for economic reasons. Slovenes are predominantly Roman Catholic, though the nation also has a small number of Protestants, Orthodox Christians, Muslims, and Jews. Slovene is a Slavic language, written in the Roman script.

Population (2000): 2 million. Annual growth rate: +0.2%. Ethnic groups: Slovenes 87.84%, Croats 2.76%, Serbs 2.44%, Bosnians 1.36%, Hungarians 0.43%, Montenegrins 0.22%, Macedonians 0.22%, Albanians 0.18%, Italians 0.16%. Religions: Predominantly Roman Catholic, although there are small numbers of Protestants, Orthodox Christians, Muslims, and Jews. Languages: The official language is Slovene. Hungarian and Italian are spoken in the border regions, and German fluency is common near the Austrian border. English is widely understood by business people and students. Education: Higher education enrollment ratio--26.2%. Health: Infant mortality rate--5.5/1,000 births. Life expectancy--70.27 years for men, 77.76 years for women. Work force (2000): 875,060.