Pejaković families are frequently Croats and they are mostly from Nova Gradiska area , less frequently Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Petrinja and Sisak. In Oštri Vrh in Nova Gradiska area every sixth inhabitant had the family name Pejaković.
Prevalence
About 640 people with faimily name Pejaković live in Croatia today, in 270 households. There were 490 of them in the middle of the past century, and their number increased by 30 percent. They are located in almost all Croatian counties, in 42 cities and 71 other places, mostly in Zagreb (105), Rijeka (30), Petrinja (30), Zupanja (25), and in Nova Gradiska (25).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.