In Croatia, Janjoš families are predominantly Croats (from Drnis area ), rarely Serbs, and very rarely Czechs (from Sisak ). In the past century, relatively most of Croatian residents bearing this family name were born in Karlovac and in Bosnian Krajina (Prijedor area). In Miska Glava in Bosnian Krajina every twentieth inhabitant had the family name Janjoš.
Prevalence
About 40 people with faimily name Janjoš live in Croatia today, in 17 households. There were 10 of them in the middle of the past century, and their number multiplied. They are only located in in 7 Croatian cities and threee other places, mostly in Sisak (<10), Split (<10), Karlovac (<10), Zagreb (<5), and in Petrinja (<5).
Outside Croatia
Family name Janjoš (including: Janjos , Janios ) is present in five countries on three continents. The family name "Janjos " is used by small number of people in the United States. "Janios " is used by small number of people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.