In Croatia, Giljušić families are generally Croats (from Sinj area ), very rarely Hungarians (from Split ). In the past century, relatively most of Croatian residents bearing this family name were born in Sinj area and in Split.
Prevalence
About 20 people with faimily name Giljušić live in Croatia today, in 10 households. There were 20 of them in the middle of the past century, and their number remains constant. They are located in threee Croatian counties and two other places, mostly in Split (<10), Crivac in Sinj area (<5), Dubrovnik (<5), Rijeka (<5), and in Kastel Sucurac (<5).
Outside Croatia
Family name Giljušić is present in this form only in Croatia.