Ivanuš families are Croats and they are mostly from Klanjec area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Klanjec. In Prosinec in Klanjec area every third inhabitant had the family name Ivanuš.
Prevalence
About 220 people with faimily name Ivanuš live in Croatia today, in 90 households. There were 310 of them in the middle of the past century, and their number decreased by 30 percent. They are located in 10 Croatian counties, in 17 cities and 31 other places, mostly in Zagreb (75), Gredice (20), Dubravica in Klanjec area (15), Zapresic (15), and in Osijek (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.