In Croatia, Mergeduš families are Croats (from Lepoglava area ). In the past century, relatively most of Croatian residents bearing this family name were born in Lepoglava area and in Zagreb.
Prevalence
About 30 people with faimily name Mergeduš live in Croatia today, in 14 households. There were 40 of them in the middle of the past century, and their number decreased by 20 percent. They are only located in four Croatian cities and four other places, mostly in Zagreb (10), Nova Gradiska (<10), Brezova Gora in Lepoglava area (<5), Koprivnica (<5), and in Nasice (<5).
Outside Croatia
Family name Mergeduš is present in this form only in Croatia.