In Croatia, Brajak families are Croats (from Ozalj area ). In the past century, relatively most of Croatian residents bearing this family name were born in Ozalj area and in Karlovac. In Kupčina Žumberačka in Ozalj area every sixth inhabitant had the family name Brajak.
Prevalence
About 60 people with faimily name Brajak live in Croatia today, in 20 households. There were 100 of them in the middle of the past century, and their number decreased by 40 percent. They are only located in in 6 Croatian cities and 6 other places, mostly in Jastrebarsko (15), Karlovac (10), Dubrovnik (<10), Kupcina Zumberacka in Ozalj area (<10), and in Brajakovo Brdo in Duga Resa area (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1929 in source Emigration Commission Zagreb.