In Croatia, Janačković families are mainly Croats (from Split ), rarely Serbs, and very rarely Hungarians. In the past century, relatively most of Croatian residents bearing this family name were born in Split and in Serbia.
Prevalence
About 20 people with faimily name Janačković live in Croatia today, in four households only. There were 10 of them in the middle of the past century, and their number doubled. They are located in two Croatian cities only, in Zagreb (10) and Split (<10).
Outside Croatia
Family name Janačković is present in 8 countries on three continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1930 in source Emigration Commission Zagreb.