Hudoletnjak families are Croats and they are mostly from Ivanec. In the past century, relatively most of Croatian residents bearing this family name were born in Varazdin and Ivanec. In Salinovec in Ivanec every sixth inhabitant had the family name Hudoletnjak.
Prevalence
About 390 people with faimily name Hudoletnjak live in Croatia today, in 150 households. There were 300 of them in the middle of the past century, and their number increased by 30 percent. They are located in the most of Croatian counties, in 18 cities and 40 other places, mostly in Varazdin (50), Salinovec (45), Zagreb (40), Sracinec in Varazdin area (30), and in Bjelovar (30).
Outside Croatia
Family name Hudoletnjak is present in 6 countries on three continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1938 in source Phone Book - Zagreb 1938.