In Croatia, Mikolj families are predominantly Croats (from Buzet ), rarely Slovenes (from Slovenia ). In the past century, relatively most of Croatian residents bearing this family name were born in Buzet and Rijeka.
Prevalence
About 10 people with faimily name Mikolj live in Croatia today, in four households only. They are located in only threee naselja i to in Crnica (<10), Potpican in Labin area (<5), and in Sveti Martin (<5).