In Croatia, Aurer families are Croats (from Djurdjevac area ). In the past century, relatively most of Croatian residents bearing this family name were born in Djurdjevac area and in Zagreb.
Prevalence
About 50 people with faimily name Aurer live in Croatia today, in 20 households. There were 10 of them in the middle of the past century, and their number multiplied. They are located in 7 Croatian counties, in 6 cities and 5 other places, mostly in Kalinovac in Djurdjevac area (20), Zagreb (15), Djurdjevac (<10), Koprivnica (<5), and in Okrugljaca in Virovitica area (<5).
Outside Croatia
Family name Aurer is present in four countries on two continents. "Haurer " is used by few people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.