In Croatia, Regelja families are Croats (from Zagreb ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Bjelovar.
Prevalence
About 50 people with faimily name Regelja live in Croatia today, in 18 households. There were 60 of them in the middle of the past century, and their number decreased by 10 percent. They are located in threee Croatian counties, four cities and four other places, mostly in Zagreb (15), Strmec (10), Prgomelje (<5), Velika Gorica (<5), and in Bjelovar (<5).
Outside Croatia
Family name Regelja is present in this form only in Croatia.