In Croatia, Probst families are Croats (from Sisak ). In the past century, relatively most of Croatian residents bearing this family name were born in Sisak.
Prevalence
About 10 people with faimily name Probst live in Croatia today, in four households only. There were 0 of them in the middle of the past century, and their number multiplied. They are located in two Croatian cities only, in Sisak (<5) and Zagreb (<5).
Outside Croatia
Family name Probst is present in 62 countries worldwide. The family name "Probst " is used by some 30000 people in Germany , about 10000 in the United States , and some 4000 people in Brazil.