Janović families are predominantly Croats and they are mostly from Kotor , Montenegro, less frequently Hungarians (from Vinkovci area ). In the past century, relatively most of Croatian residents bearing this family name were born in Vinkovci and in Vinkovci area.
Prevalence
About 120 people with faimily name Janović live in Croatia today, in 50 households. There were 150 of them in the middle of the past century, and their number decreased by 20 percent. They are located in the most of Croatian counties, in 12 cities and 16 other places, mostly in Stari Jankovci in Vinkovci area (20), Zagreb (15), Vinkovci (10), and in Nustar (10) and Ivankovo (<10) in Vinkovci area.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.