In Croatia, Klajo families are Hungarians by relative majority (from Osijek area ), less frequently Croats (from Pleternica area ), and rarely Roms (from Beli Manastir ). In the past century, relatively most of Croatian residents bearing this family name were born in Osijek area and in Pleternica area.
Prevalence
About 20 people with faimily name Klajo live in Croatia today, in 8 households. There were 40 of them in the middle of the past century, and their number halved. They are located in only four Croatian places: in Lug in Osijek area (10), Sumece in Pleternica area (<10), Beli Manastir (<10), and in Slavonski Brod (<5).