In Croatia, Humljak families are Croats (from Donja Stubica ). In the past century, relatively most of Croatian residents bearing this family name were born in Donja Stubica and Zabok.
Prevalence
About 60 people with faimily name Humljak live in Croatia today, in 20 households. There were 50 of them in the middle of the past century, and their number increased by 20 percent. They are only located in in 6 Croatian cities and threee other places, mostly in Hrusevec (25), Pustodol (20), Zagreb (10), Rijeka (<10), and in Dubrava Zabocka (<10).
Outside Croatia
Family name Humljak is present in this form only in Croatia.