Zaić families are Croats and they are mostly from Zabok area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Zabok. In Vilanci in Zabok area every ninth inhabitant had the family name Zaić.
Prevalence
About 80 people with faimily name Zaić live in Croatia today, in 40 households. There were 100 of them in the middle of the past century, and their number decreased by 20 percent. They are only located in in 7 Croatian cities and 11 other places, mostly in Zagreb (45), Vilanci in Zabok area (<10), Samobor (<5), Gornji Zbilj in Pregrada area (<5), and in Split (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over fifty times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.