In Croatia, Jacešin families are generally Croats (from Slavonski Brod area ), rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Slavonski Brod area and in Slavonski Brod.
Prevalence
About 10 people with faimily name Jacešin live in Croatia today, in four households only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in one Croatian city only, in Slavonski Brod (20).
Outside Croatia
Family name Jacešin (including: Jacesin , Yaceshyn ) is present in three countries on two continents. "Yaceshyn " is used by small number of people in the United States.