In Croatia, Kraljek families are Croats (from Djurdjevac area ). In the past century, relatively most of Croatian residents bearing this family name were born in Djurdjevac area and in Virovitica.
Prevalence
About 40 people with faimily name Kraljek live in Croatia today, in 20 households. There were 80 of them in the middle of the past century, and their number halved. They are located in 10 Croatian counties, in 11 cities and 9 other places, mostly in Cakovec (<10), Djurdjenovac in Nasice area (<10), Opatinec (<10), Zagreb (<10), and in Slatina (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.