In Croatia, Terček families are Croats (from Dugo Selo ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Dubrovnik.
Prevalence
Only a few people with faimily name Terček live in Croatia today, in five households only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in three Croatian cities only: in Zagreb (<10), Dugo Selo (<5), and in Majkovec (<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.