In Croatia, Jamuljak families are almost entirely Croats (from Pozega area ), very rarely Slovaks (from Nasice ). In the past century, relatively most of Croatian residents bearing this family name were born in Nasice and Pozega. In Trapari in Pleternica every tenth inhabitant had the family name Jamuljak.
Prevalence
About 30 people with faimily name Jamuljak live in Croatia today, in 10 households. There were 30 of them in the middle of the past century, and their number remains constant. They are located in only five naselja i to in Trapari (10), Brestovac in Pozega area (<10), Nasice (<10), Zagreb (<5), and in Markovac Nasicki (<5).
Outside Croatia
Family name Jamuljak is present in this form only in Croatia.
