In Croatia, Domnjak families are Croats (from Sinj area ). In the past century, relatively most of Croatian residents bearing this family name were born in Sinj and in Sinj area.
Prevalence
About 30 people with faimily name Domnjak live in Croatia today, in 9 households. They are located in two Croatian counties, four cities and two other places, mostly in Potravlje in Sinj area (15), Djurdjenovac in Nasice area (<10), Solin (<5), Split (<5), and in Nasice (<5).
Outside Croatia
Family name Domnjak (including: Domnyach , Domnyak ) is present in five countries.