In Croatia, Frček families are Croats (from Zupanja area ). In the past century, relatively most of Croatian residents bearing this family name were born in Zupanja area and in Zagreb.
Prevalence
About 30 people with faimily name Frček live in Croatia today, in 16 households. There were 40 of them in the middle of the past century, and their number decreased by 20 percent. They are located in only four naselja i to in Zagreb (20), Vrbanja in Zupanja area (<5), Gracac in Knin area (<5), and in Donji Dragonozec (<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.