In Croatia, Diebalo families are generally Croats (from Bjelovar ), very rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Bjelovar.
Prevalence
About 20 people with faimily name Diebalo live in Croatia today, in 8 households. There were 30 of them in the middle of the past century, and their number decreased by 40 percent. They are located in only five Croatian places: in Gudovac (10), Klokocevac (<10), Bjelovar (<5), Martinac (<5), and in Rovistanci in Koprivnica area (<5).
Outside Croatia
Family name Diebalo is present in this form only in Croatia.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.