In Croatia, Hreljanović families are predominantly Croats (from Sisak ), rarely Italians (from Rijeka ), and very rarely Slovenes (also from Rijeka ). In the past century, relatively most of Croatian residents bearing this family name were born in Rijeka and Zagreb.
Prevalence
About 20 people with faimily name Hreljanović live in Croatia today, in 13 households. There were 40 of them in the middle of the past century, and their number halved. They are located and another small Croatian place , mostly in Rijeka (10), Sisak (<10), Zagreb (<10), Varazdin (<5), and in Dugo Selo (<5).
Outside Croatia
Family name Hreljanović is present in four countries on three continents. The family name "Hreljanovic " is used by some 100 people in Afghanistan and small number in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1691 in source Catholic Church Parish Records.