In Croatia, Hajnc families are Croats (from Belisce ). In the past century, relatively most of Croatian residents bearing this family name were born in Belisce and Pula.
Prevalence
About 20 people with faimily name Hajnc live in Croatia today, in 8 households. There were 30 of them in the middle of the past century, and their number decreased by 40 percent. They are located in only five naselja i to in Zadar (<10), Pula (<10), Vinogradci (<5), Belisce (<5), and in Zagreb (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.