In Croatia, Jačov families are Croats by relative majority (from Benkovac ), equally Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Benkovac and Zadar.
Prevalence
About 10 people with faimily name Jačov live in Croatia today, in four households only. There were 20 of them in the middle of the past century, and their number halved. They are located in only threee naselja i to in Zagreb (<5), Benkovac (<5), and in Gornje Ceranje (<5).