In Croatia, Pejinović families are generally Croats (from Middle Bosnia ), very rarely Slovenes (from Zagreb ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Bosanian Posavina (Bosanska Gradiska area) and in Middle Bosnia (Zavidovici area).
Prevalence
About 30 people with faimily name Pejinović live in Croatia today, in 14 households. There were 60 of them in the middle of the past century, and their number halved. They are located in 7 Croatian counties, in 7 cities and 7 other places, mostly in Zagreb (<10), Split (<10), Solin (<5), Murter on the Island of Murter (<5), and in Djakovo (<5).
Outside Croatia
Family name Pejinović is present in 7 countries on two continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1923 in source Emigration Commission Zagreb.