Paj families are Croats and they are mostly from Zagreb. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Dugo Selo area.
Prevalence
About 100 people with faimily name Paj live in Croatia today, in 30 households. There were 90 of them in the middle of the past century, and their number increased by 10 percent. They are located in four Croatian counties and 8 other places, mostly in Kasina (25), Zagreb (20), Dugo Selo (15), Glavnica Gornja (15), and in Adamovec (10).