Bahlen families are Croats and they are mostly from Ivanic-Grad area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Ivanic-Grad area.
Prevalence
About 140 people with faimily name Bahlen live in Croatia today, in 60 households. There were 130 of them in the middle of the past century, and their number increased by 0 percent. They are located in 6 Croatian counties, in 6 cities and 17 other places, mostly in Belovar (30), Zagreb (25), Moravce (20), Adamovec (15), and in Voloder in Kutina area (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.