Prah families are Croats and they are mostly from Krapina area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Krapina area. In Koprivnica Zagorska in Krapina area every sixth inhabitant had the family name Prah.
Prevalence
About 70 people with faimily name Prah live in Croatia today, in 40 households. There were 50 of them in the middle of the past century, and their number increased by 40 percent. They are located and 5 other Croatian places, mostly in Zagreb (65), Samobor (<5), Krk on the Island of Krk (<5), Cepin in Osijek area (<5), and in Rijeka (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1923 in source Emigration Commission Zagreb.