In Croatia, Ilin families are Croats (from Valpovo area ). In the past century, relatively most of Croatian residents bearing this family name were born in Osijek and in Valpovo area.
Prevalence
About 40 people with faimily name Ilin live in Croatia today, in 17 households. There were 40 of them in the middle of the past century, and their number remains constant. They are located in 6 Croatian counties, in 6 cities and threee other places, mostly in Brodjanci in Valpovo area (10), Osijek (<10), Valpovo (<10), Visnjevac (<10), and in Zagreb (<5).