In Croatia, Tubak families are predominantly Croats (from Middle Bosnia ), rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Middle Bosnia (Zenica area) and in Pula.
Prevalence
About 40 people with faimily name Tubak live in Croatia today, in 16 households. There were 10 of them in the middle of the past century, and their number multiplied. They are located in 7 Croatian counties, in 11 cities and 5 other places, mostly in Momjan (<10), Modrusani in Pazin area (<10), Sibenik (<5), Novi Vinodolski (<5), and in Zagreb (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.