In Croatia, Dikulić families are mainly Croats (from Hrvatska Kostajnica area ), less frequently Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Hrvatska Kostajnica area and in Sisak.
Prevalence
Only a few people with faimily name Dikulić live in Croatia today, in three households only. There were 20 of them in the middle of the past century, and their number halved. They are only located in two Croatian cities and another small place , mostly in Sisak (<5), Hrvatska Dubica in Hrvatska Kostajnica area (<5), and in Petrinja (<5).
Outside Croatia
Family name Dikulić 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 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.