In Croatia, Trušček families are Croats (from Krizevci area ). In the past century, relatively most of Croatian residents bearing this family name were born in Krizevci area and in Zagreb.
Prevalence
About 30 people with faimily name Trušček live in Croatia today, in 15 households. There were 60 of them in the middle of the past century, and their number halved. They are located in four Croatian counties and 7 other places, mostly in Selanec in Krizevci area (<10), Osijek (<10), Krizevci (<10), Orehovec in Krizevci area (<10), and in Zagreb (<5).
Outside Croatia
Family name Trušček is present in this form only in Croatia.