Gudek families are Croats and they are mostly from Zlatar area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Zlatar area. In Gornja Konjščina in Zlatar area every fifth inhabitant had the family name Gudek.
Prevalence
About 120 people with faimily name Gudek live in Croatia today, in 50 households. There were 100 of them in the middle of the past century, and their number increased by 10 percent. They are located in 7 Croatian counties, in 11 cities and 18 other places, mostly in Zagreb (25), in Gornja Konjscina (20) and Konjscina (15) in Zlatar area, Labin (<10), and in Novoselec in Ivanic-Grad area (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.