In Croatia, Justrić families are Croats (from Kastela area ). In the past century, relatively most of Croatian residents bearing this family name were born in Kastela area and in Split.
About 10 people with faimily name Justrić live in Croatia today, in two households only. There were 0 of them in the middle of the past century, and their number multiplied. They are located in only one small Croatian place, in Kastel Stari (<10).