In Croatia, Rieger families are Croats (from Samobor ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb.
Prevalence
About 10 people with faimily name Rieger live in Croatia today, in five households only. There were 20 of them in the middle of the past century, and their number halved. They are located in only five naselja i to in Samobor (<10), Zagreb (<5), Nasice (<5), and in Podgorac (<5) and Stipanovci (<5) in Nasice area.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.