In Croatia, Cvrk families are almost entirely Croats (from Middle Bosnia ), barely Bosniaks (from Podrinje (Bosnia) ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Bjelovar. In Voljavica in Podrinje (Bosnia) every eighth inhabitant had the family name Cvrk.
Prevalence
About 60 people with faimily name Cvrk live in Croatia today, in 30 households. There were 40 of them in the middle of the past century, and their number increased by 70 percent. They are located in the most of Croatian counties, in 10 cities and 9 other places, mostly in Zagreb (30), Sesvete (<10), Vica Sela in Krapina area (<10), Glina (<10), and in Veliko Korenovo (<5).