In Croatia, Plačković families are predominantly Croats (from Hrvatska Kostajnica ), rarely Serbs, and barely Albanians (from Hrvatska Kostajnica ). In the past century, relatively most of Croatian residents bearing this family name were born in Hrvatska Kostajnica and Zagreb.
Prevalence
About 50 people with faimily name Plačković live in Croatia today, in 30 households. There were 70 of them in the middle of the past century, and their number decreased by 20 percent. They are located in 8 Croatian counties, in 9 cities and 9 other places, mostly in Zagreb (10), Ivankovo in Vinkovci area (<10), Sisak (<10), Slatina (<5), and in Rijeka (<5).
Outside Croatia
Family name Plačković is present in this form only in Croatia.