Erman families are Croats and they are mostly from Pazin area. In the past century, relatively most of Croatian residents bearing this family name were born in Pula and in Pazin area.
Prevalence
About 110 people with faimily name Erman live in Croatia today, in 40 households. There were 90 of them in the middle of the past century, and their number increased by 20 percent. They are only located in in 9 Croatian cities and 8 other places, mostly in Zminj in Pazin area (35), Pula (20), Pazin (10), Rovinj (<10), and in Kringa in Pazin area (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over eighty times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.