Ivatek families are Croats and they are mostly from Zagreb. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Kutina area.
Prevalence
About 70 people with faimily name Ivatek live in Croatia today, in 30 households. There were 70 of them in the middle of the past century, and their number remains constant. They are located in four Croatian counties, four cities and threee other places, mostly in Zagreb (55), Veli Losinj on the Island of Losinj (<10), Struzec in Kutina area (<5), Dugo Selo (<5), and in Luka (<5).
Outside Croatia
Family name Ivatek is present in this form only in Croatia.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.