Žiža families are generally Croats and they are mostly from Banja Luka area (Bosnia), less frequently Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Banja Luka Region, Bosnia (Banja Luka area) and in Duga Resa area.
Prevalence
About 110 people with faimily name Žiža live in Croatia today, in 60 households. There were 100 of them in the middle of the past century, and their number increased by 10 percent. They are located in the most of Croatian counties, in 15 cities and 19 other places, mostly in Bjelovar (15), Osijek (<10), Karlovac (<10), Ernestinovo in Osijek area (<10), and in Svojic in Duga Resa area (<10).
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.