In Croatia, Ruba families are generally Croats (from Pula area ), very rarely Italians (from Pula ), and barely Slovenes (also from Pula ). In the past century, relatively most of Croatian residents bearing this family name were born in Pula and in Pula area. In Kujići in Pula area every second inhabitant had the family name Ruba.
Prevalence
About 60 people with faimily name Ruba live in Croatia today, in 30 households. There were 70 of them in the middle of the past century, and their number decreased by 20 percent. They are located in threee Croatian counties, four cities and 6 other places, mostly in Pula (30), Barban in Labin area (10), Kujici in Pula area (<10), Zagreb (<10), and in Liznjan in Pula area (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.