In Croatia, Jernejšek families are generally Croats (from Buje area ), rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Pleternica area and in Nasice. In Darkovac in Pleternica area every tenth inhabitant had the family name Jernejšek.
Prevalence
Only a few people with faimily name Jernejšek live in Croatia today, in three households only. They are located in only five naselja i to in Zagreb (<5), Osijek (<5), Pozega (<5), and in Vizinada (<5) and Brig (<5) in Buje area.
Outside Croatia
Family name Jernejšek is present in this form only in Croatia.
