In Croatia, Peterfay families are Croats (from Sibenik ). In the past century, relatively most of Croatian residents bearing this family name were born in Zadar.
Prevalence
Only a few people with faimily name Peterfay live in Croatia today, in one household only. They are located in one Croatian city only, in Sibenik (<5).
Outside Croatia
Family name Peterfay is present in this form only in Croatia.