In Croatia, Oslić families are almost entirely Croats (from Krapina area ), barely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Krapina area.
Prevalence
About 60 people with faimily name Oslić live in Croatia today, in 20 households. There were 40 of them in the middle of the past century, and their number increased by 30 percent. They are located and 5 other Croatian places, mostly in Zagreb (20), Mihovljan in Krapina area (15), Osijek (<10), Djakovo (<5), and in Klostar Ivanic in Ivanic-Grad area (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.