In Croatia, Rizk families are Croats (from Koprivnica ). In the past century, relatively most of Croatian residents bearing this family name were born in Slovenia.
Prevalence
Only a few people with faimily name Rizk live in Croatia today, in two households only. They are located in only two naselja i to in Koprivnica (<5) and Starigrad (<5).
Outside Croatia
Family name Rizk (including: Rizq , Riezk ) is present in 83 countries worldwide. "Riezk " is used by few people in the United States.