In Croatia, Čvorig families are Croats (from Dugo Selo area ). In the past century, relatively most of Croatian residents bearing this family name were born in Dugo Selo area and in Zagreb.
Prevalence
About 40 people with faimily name Čvorig live in Croatia today, in 17 households. There were 60 of them in the middle of the past century, and their number decreased by 30 percent. They are located in threee Croatian counties, threee cities and four other places, mostly in Jezevo in Dugo Selo area (15), Zagreb (10), Sesvete (<10), Velika Gorica (<5), and in Velika Ostrna (<5).
Outside Croatia
Family name Čvorig (including: Cvorig , Chvorig ) is present in two countries.
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.