In Croatia, Viher families are almost entirely Croats (from Krizevci ), barely Slovenes (from Zagreb ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Mursko Sredisce area.
Prevalence
About 50 people with faimily name Viher live in Croatia today, in 20 households. There were 50 of them in the middle of the past century, and their number remains constant. They are located in 6 Croatian counties, in 7 cities and threee other places, mostly in Zagreb (15), Krizevci (<10), Sesvete (<10), Pesek (<10), and in Prelog (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1923 in source Emigration Commission Zagreb.