In Croatia, Jančik families are Croats (from Middle Bosnia ). In the past century, relatively most of Croatian residents bearing this family name were born in Middle Bosnia (Sarajevo area) and in Bjelovar.
Prevalence
About 30 people with faimily name Jančik live in Croatia today, in 9 households. There were 10 of them in the middle of the past century, and their number tripled. They are located in four Croatian counties, threee cities and threee other places, mostly in Zagreb (15), Kajgana (<10), Osijek (<10), Sedlarica in Djurdjevac area (<5), and in Visnjevac (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over twenty times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.