In Croatia, Supraha families are Croats (from Rijeka ). In the past century, relatively most of Croatian residents bearing this family name were born in Pula.
Prevalence
Only a few people with faimily name Supraha live in Croatia today, in one household only. There were 0 of them in the middle of the past century, and their number remains constant. They are located in three Croatian cities only: in Zagreb (<5), Rijeka (<5), and in Pula (<5).
Outside Croatia
Family name Supraha (including: Superatha , Supracheva ) is present in five countries on two continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 2007 in source Encyclopaedia of Croatian Surnames.