In Croatia, Reh families are Croats (from Cazma ). In the past century, relatively most of Croatian residents bearing this family name were born in Cazma area.
Prevalence
About 10 people with faimily name Reh live in Croatia today, in two households only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in two Croatian cities only, in Zagreb (<10) and Gornji Miklous (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.