In Croatia, Tuba families are generally Croats (from Djurdjevac area ), very rarely Hungarians (from Biograd na moru ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Djurdjevac area and in Koprivnica. In Mrsovo in Podrinje (Bosnia) every second inhabitant had the family name Tuba.
Prevalence
About 80 people with faimily name Tuba live in Croatia today, in 30 households. There were 70 of them in the middle of the past century, and their number increased by 10 percent. They are located in 10 Croatian counties, in 9 cities and 8 other places, mostly in Molve in Djurdjevac area (40), Zagreb (<10), Bjelovar (<10), Koprivnica (<5), and in Biograd na moru (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.