Ivas families are Croats and they are mostly from Vodice. In the past century, relatively most of Croatian residents bearing this family name were born in Sibenik and Vodice.
Prevalence
About 210 people with faimily name Ivas live in Croatia today, in 80 households. There were 160 of them in the middle of the past century, and their number increased by 30 percent. They are located in 8 Croatian counties, in 13 cities and 6 other places, mostly in Vodice (95), Split (35), Zagreb (30), Pakostane in Biograd na moru area (20), and in Sibenik (15).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1825 in source Catholic Church Parish Records.