In Croatia, Urbac families are Croats by relative majority (from Buje ), equally Italians (also from Buje ). In the past century, relatively most of Croatian residents bearing this family name were born in Buje and in Slovenia.
Prevalence
Only a few people with faimily name Urbac live in Croatia today, in three households only. They are located in two Croatian cities only, in Umag (<5) and Kastel (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.