Đurđan families are Croats and they are mostly from Krapina area. In the past century, relatively most of Croatian residents bearing this family name were born in Krapina area and in Zagreb. In Klupci in Krapina area every eighth inhabitant had the family name Đurđan.
Prevalence
About 70 people with faimily name Đurđan live in Croatia today, in 30 households. There were 30 of them in the middle of the past century, and their number more than doubled. They are located in 6 Croatian counties, in 6 cities and 12 other places, mostly in Klupci in Krapina area (30), Zagreb (15), Krapinske Toplice in Krapina area (<10), Zabok (<5), and in Vica Sela in Krapina area (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.