Kučinac families are Croats and they are mostly from Valpovo area. In the past century, relatively most of Croatian residents bearing this family name were born in Valpovo area and in Osijek.
Prevalence
About 100 people with faimily name Kučinac live in Croatia today, in 50 households. There were 130 of them in the middle of the past century, and their number decreased by 20 percent. They are only located in in 9 Croatian cities and 11 other places, mostly in Brodjanci in Valpovo area (25), Valpovo (20), Bizovac in Valpovo area (15), Zagreb (10), and in Osijek (<10).
Outside Croatia
Family name Kučinac 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.