In Croatia, Klopčić families are predominantly Croats (from Koprivnica area ), rarely Slovenes (from Buzet area ). In the past century, relatively most of Croatian residents bearing this family name were born in Koprivnica and in Djurdjevac area.
Prevalence
Only a few people with faimily name Klopčić live in Croatia today, in four households only. There were 0 of them in the middle of the past century, and their number multiplied. They are located in only four naselja i to in Peteranec in Koprivnica area (<5), Koprivnica (<5), and in Oprtalj (<5) and Sveta Lucija (<5) in Buzet area.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1924 in source Emigration Commission Zagreb.