In Croatia, Šišan families are mainly Slovaks (from Nasice ), less frequently Croats (from Nasice area ), and very rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Nasice and Rijeka.
Prevalence
About 30 people with faimily name Šišan live in Croatia today, in 13 households. There were 40 of them in the middle of the past century, and their number decreased by 20 percent. They are located in threee Croatian counties and threee other places, mostly in Breznica Nasicka in Nasice area (10), Jelisavac (<10), Rijeka (<5), Osijek (<5), and in Cikovici (<5).