In Croatia, Tudjen families are Croats (from Zapresic area ). In the past century, relatively most of Croatian residents bearing this family name were born in Zapresic area and in Daruvar.
Prevalence
About 30 people with faimily name Tudjen live in Croatia today, in 14 households. There were 30 of them in the middle of the past century, and their number remains constant. They are located in four Croatian counties, four cities and threee other places, mostly in Jakovlje in Zapresic area (15), Kastav (<10), Zagreb (<10), Rijeka (<5), and in Igrisce in Zapresic area (<5).
Outside Croatia
Family name Tudjen is present in two countries on two continents. The family name "Tudjen " 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 2007 in source Encyclopaedia of Croatian Surnames.