In Croatia, Curkan families are Croats (from Middle Bosnia ). In the past century, relatively most of Croatian residents bearing this family name were born in Rijeka.
Prevalence
Only a few people with faimily name Curkan live in Croatia today, in four households only. They are located in two Croatian cities only, in Rijeka (<10) and Split (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1926 in source Emigration Commission Zagreb.