In Croatia, Jandrej families are Croats (from Jastrebarsko area ). In the past century, relatively most of Croatian residents bearing this family name were born in Jastrebarsko area and in Zagreb.
Prevalence
About 10 people with faimily name Jandrej live in Croatia today, in four households only. There were 20 of them in the middle of the past century, and their number halved. They are located in only two Croatian places: in Dvoranci in Jastrebarsko area (<10) and Zagreb (<5).