In Croatia, Teški families are Croats (from Novi Marof area ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Novi Marof area.
Prevalence
About 40 people with faimily name Teški live in Croatia today, in 15 households. There were 40 of them in the middle of the past century, and their number remains constant. They are located in four Croatian counties, threee cities and 7 other places, mostly in Zagreb (25), Martinscina (<10), Podvorec in Novi Marof area (<10), Breg Mokricki (<5), and in Sveti Ivan Zelina (<5).