In Croatia, Grgašević families are Croats (from Pleternica area ). In the past century, relatively most of Croatian residents bearing this family name were born in Slavonski Brod and in Pleternica area.
Prevalence
About 10 people with faimily name Grgašević live in Croatia today, in three households only. There were 20 of them in the middle of the past century, and their number halved. They are located in only two naselja i to in Banovci in Pleternica area (20) and Brcino in Slavonski Brod area (<5).
Outside Croatia
Family name Grgašević is present in this form only in Croatia.