In Croatia, Bortulić families are generally Croats (from the Island of Krk ), rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born on the Island of Krk and in Rijeka.
Prevalence
About 10 people with faimily name Bortulić live in Croatia today, in five households only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in four Croatian counties, threee cities and threee other places, mostly in Pula (<10), Malinska on the Island of Krk (<5), Rijeka (<5), Virje in Djurdjevac area (<5), and in Omisalj on the Island of Krk (<5).
Outside Croatia
At least four families with this surname emigrated from Croatia to the United States. Family name Bortulić is present in this form only in Croatia.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1929 in source Emigration Commission Zagreb.