In Croatia, Dermišek families are generally Croats (from Ilok ), very rarely Slovaks (also from Ilok ), and barely Roms (from Vinkovci ). In the past century, relatively most of Croatian residents bearing this family name were born in Backa, Vojvodina and in Ilok.
About 80 people with faimily name Dermišek live in Croatia today, in 30 households. There were 20 of them in the middle of the past century, and their number multiplied. They are located in 7 Croatian counties, in 12 cities and 9 other places, mostly in Ilok (40), Mirkovci (10), Ivanic-Grad (<10), Zagreb (<10), and in Valpovo (<10).
Family name Dermišek (including: Dermisek , Dermishek ) is present in three countries.