Islamović families are mainly Croats and they are mostly from Cazinska Krajina Region (Bosnia), often Bosniaks. In the past century, relatively most of Croatian residents bearing this family name were born in Cazins Region, Bosnia (Bihac area) and in Zagreb.
Prevalence
About 70 people with faimily name Islamović live in Croatia today, in 30 households. There were 10 of them in the middle of the past century, and their number multiplied. They are located in the most of Croatian counties, in 21 cities and 6 other places, mostly in Zagreb (30), Rijeka (10), Karlovac (<10), Omis (<10), and in Grabarje in Slavonski Brod area (<10).
Outside Croatia
At least two families with this surname emigrated from Croatia to the United States. Family name Islamović (including: Islamovic , Islamovich ) is present in 28 countries worldwide. The family name "Islamovic " is used by some 200 people in the United States , about 90 in Sweden , and some 90 people in Libya.
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.