In Croatia, Grošanić families are Croats (from Koprivnica area ). In the past century, relatively most of Croatian residents bearing this family name were born in Koprivnica area and in Zagreb.
Prevalence
About 30 people with faimily name Grošanić live in Croatia today, in 14 households. There were 60 of them in the middle of the past century, and their number halved. They are only located in four Croatian cities and 5 other places, mostly in Koprivnica (<10), Lopatinec in Cakovec area (<10), Zagreb (<5), Cakovec (<5), and in Spisic Bukovica in Virovitica area (<5).
Outside Croatia
Family name Grošanić is present in this form only in Croatia.