In Croatia, Coronica families are predominantly Italians (from Umag ), rarely Croats (from Slovenia ). In the past century, relatively most of Croatian residents bearing this family name were born in Umag and in Slovenia.
Prevalence
About 20 people with faimily name Coronica live in Croatia today, in 8 households. There were 20 of them in the middle of the past century, and their number remains constant. They are located in only threee naselja i to in Umag (10), Babici (<5), and in Juricani (<5).
Outside Croatia
At least two families with this surname emigrated from Croatia to the United States. Family name Coronica is present in 10 countries worldwide.