In Croatia, Šerbula families are generally Serbs, rarely Croats (from Samobor ). In the past century, relatively most of Croatian residents bearing this family name were born in Hrvatska Kostajnica area and in Zagreb. In Trgovi in Hrvatska Kostajnica area every sixth inhabitant had the family name Šerbula.
Prevalence
About 40 people with faimily name Šerbula live in Croatia today, in 20 households. There were 100 of them in the middle of the past century, and their number decreased significantly. They are located in 6 Croatian counties, in 7 cities and 11 other places, mostly in Zagreb (15), in Trgovi (<10), Dvor (<5) and Drljaca (<5) in Hrvatska Kostajnica area, and in Cavle in Rijeka area (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1928 in source Emigration Commission Zagreb.