In Croatia, Waronig 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 Waronig live in Croatia today, in one household only. There were 0 of them in the middle of the past century, and their number multiplied. They are located in one Croatian city only, in Zagreb (<10).
Outside Croatia
Family name Waronig is present in this form only in Croatia.