Ivkošić families are Croats and they are mostly from Imotski area. In the past century, relatively most of Croatian residents bearing this family name were born in Imotsko and in Imotski area.
Prevalence
About 130 people with faimily name Ivkošić live in Croatia today, in 50 households. There were 70 of them in the middle of the past century, and their number increased by 100 percent. They are located in four Croatian counties and 9 other places, mostly in Zmijavci in Imotski area (55), Zupanja (35), Imotski (15), Split (15), and in Zagreb (10).
Outside Croatia
Family name Ivkošić is present in four countries on three continents. The family name "Ivkosic " is used by small number of people in the United States and small number in Austria.
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.