Kurtek families are mainly Croats and they are mostly from Varazdin area , less frequently Slovaks (from Nasice ). In the past century, relatively most of Croatian residents bearing this family name were born in Nasice and Varazdin.
Prevalence
About 90 people with faimily name Kurtek live in Croatia today, in 40 households. There were 110 of them in the middle of the past century, and their number decreased by 20 percent. They are located in 6 Croatian counties, in 10 cities and 11 other places, mostly in Trnovec in Varazdin area (10), Breznica Nasicka in Nasice area (10), Djakovo (<10), Nasice (<10), and in Visnjevac (<10).
Outside Croatia
Family name Kurtek is present in 7 countries on two continents. The family name "Kurtek " is used by some 200 people in Poland , about 70 in the United States , and small number of people in Slovakia.
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.