In Croatia, Kopecky families are mainly Czechs (from Garesnica ), rarely Croats (also from Garesnica ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Garesnica and Daruvar.
Prevalence
Only a few people with faimily name Kopecky live in Croatia today, in three households only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in three Croatian cities only: in Velika Gorica (<5), Garesnica (<5), and in Zagreb (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.