In Croatia, Rohrbacher families are Croats (from Djakovo area ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb.
Prevalence
Only a few people with faimily name Rohrbacher live in Croatia today, in two households only. There were 0 of them in the middle of the past century, and their number multiplied. They are located in two Croatian counties, in one city and another small place , mostly in Zagreb (<10) and Vrpolje in Djakovo area (<5).
Outside Croatia
Family name Rohrbacher is present in 17 countries worldwide. The family name "Rohrbacher " is used by some 1000 people in the United States , about 500 in Germany , and some 500 people in Brazil.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.