In Croatia, Pejakić families are Croats (from Zupanja area ). In the past century, relatively most of Croatian residents bearing this family name were born in Zupanja area and in Zagreb.
Prevalence
About 50 people with faimily name Pejakić live in Croatia today, in 20 households. There were 50 of them in the middle of the past century, and their number remains constant. They are located in 6 Croatian counties, in 6 cities and four other places, mostly in Drenovci in Zupanja area (15), Zagreb (<10), Zapresic (<10), Osijek (<5), and in Slatina (<5).
Outside Croatia
Family name Pejakić is present in three countries on two continents. The family name "Pejakic " is used by few people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1725 in source Catholic Church Parish Records.