In Croatia, Sonicki families are Croats (from Zagreb ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb.
Prevalence
Only a few people with faimily name Sonicki live in Croatia today, in two households only. There were 0 of them in the middle of the past century, and their number remains constant. They are located in one Croatian city only, in Zagreb (<10).
Outside Croatia
Family name Sonicki is present in five countries on two continents.
