In Croatia, Sudinja families are Croats (from Zadar area ). In the past century, relatively most of Croatian residents bearing this family name were born in Zadar and in Zadar area.
Prevalence
About 50 people with faimily name Sudinja live in Croatia today, in 20 households. There were 30 of them in the middle of the past century, and their number increased by 70 percent. They are located in only one small Croatian place, in Sukosan in Zadar area (45).
Outside Croatia
Family name Sudinja is present in this form only in Croatia.