Čirjak families are Croats and they are mostly from Benkovac. In the past century, relatively most of Croatian residents bearing this family name were born in Benkovac and Zadar. In Popovići in Benkovac every seventh inhabitant had the family name Čirjak.
Prevalence
About 780 people with faimily name Čirjak live in Croatia today, in 270 households. There were 380 of them in the middle of the past century, and their number doubled. They are located in the most of Croatian counties, in 25 cities and 33 other places, mostly in Zadar (190), Popovici (85), Vrana in Biograd na moru area (75), Zagreb (70), and in Biograd na moru (70).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.