In Croatia, Karner families are almost entirely Croats (from Krizevci ), very rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Koprivnica.
Prevalence
About 30 people with faimily name Karner live in Croatia today, in 13 households. There were 40 of them in the middle of the past century, and their number decreased by 30 percent. They are only located in in 6 Croatian cities and four other places, mostly in Rijeka (10), Zagreb (<10), Osijek (<10), Krizevci (<10), and in Koprivnica (<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.