Krajna families are Croats and they are mostly from Zapresic area. In the past century, relatively most of Croatian residents bearing this family name were born in Zapresic area and in Zagreb.
Prevalence
About 120 people with faimily name Krajna live in Croatia today, in 50 households. There were 90 of them in the middle of the past century, and their number increased by 30 percent. They are located and 5 other Croatian places, mostly in Zagreb (70), in Jakovlje (35) and Kraljev Vrh (10) in Zapresic area, Gornja Bistra in Oroslavje area (<10), and in Velika Gorica (<5).
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.