In Croatia, Kajasa families are Croats (from East Herzegovine ). In the past century, relatively most of Croatian residents bearing this family name were born in Middle Bosnia (Zenica area).
Prevalence
About 20 people with faimily name Kajasa live in Croatia today, in 6 households. They are only located in in 6 Croatian cities and two other places, mostly in Palit on the Island of Rab (<10), Cervar-Porat (<5), Zagreb (<5), Jursici in Labin area (<5), and in Pula (<5).