In Croatia, Cmarko families are predominantly Croats (from Pleternica ), rarely Slovaks (from Opatija ), and very rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Pozega and Pleternica.
Prevalence
About 20 people with faimily name Cmarko live in Croatia today, in 6 households. There were 20 of them in the middle of the past century, and their number remains constant. They are located in four Croatian counties, four cities and two other places, mostly in Novoselci (<10), Trapari (<5), Koprivnica (<5), Slatina (<5), and in Pleternica (<5).
Outside Croatia
At least one family with this surname emigrated from Croatia to the United States. Family name Cmarko is present in 9 countries on three continents.