In Croatia, Ajvaz families are predominantly Croats (from Cakovec area ), rarely Bosniaks (from Zagreb ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Cakovec and Kraljevica.
Prevalence
About 10 people with faimily name Ajvaz live in Croatia today, in 6 households. There were 10 of them in the middle of the past century, and their number remains constant. They are located and another small Croatian place , mostly in Praputnjak (<10), Zagreb (<5), Cakovec (<5), Slavonski Brod (<5), and in Sisak (<5).