Jakominić families are Croats and they are mostly from the Island of Krk. In the past century, relatively most of Croatian residents bearing this family name were born in Rijeka and on the Island of Krk. In Čižići on the Island of Krk every fifth inhabitant had the family name Jakominić.
Prevalence
About 80 people with faimily name Jakominić live in Croatia today, in 40 households. There were 140 of them in the middle of the past century, and their number decreased by 40 percent. They are located in threee Croatian counties and 13 other places, mostly in Njivice on the Island of Krk (20), Rijeka (10), Omisalj on the Island of Krk (10), Porec (<10), and in Rasopasno on the Island of Krk (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.