The small country of Slovenia exists at a crossroads of several different language families. Slovenia also has rather progressive laws in support of minority languages, which ones has Slovenia managed to hold on to?
All areas with minority language are considered 'bilingual' and the minority language there should not be extrapolated to meant that all people within that area speak it.
the section titled south Slavic languages and Albanian,
and the pdf linked as the source is here: http://www.inv.si/DocDir/projekti/percepcija_slo_int_pol_Bela_krajina_koncni_2.pdf
I don't speak any Slavic language, but from what I can tell about the first 70 pages talk about the cultural and linguistic heritage of Croats in these four towns in the region of Slovenia called 'White Carniola'.