In Croatia, Štanfelj families are almost entirely Croats (from Cabar ), very rarely Hungarians (from Zagreb ). In the past century, relatively most of Croatian residents bearing this family name were born in Delnice and Zagreb. In Zagolik in Delnice every tenth inhabitant had the family name Štanfelj.
Prevalence
About 40 people with faimily name Štanfelj live in Croatia today, in 15 households. There were 80 of them in the middle of the past century, and their number halved. They are located in threee Croatian counties and threee other places, mostly in Gerovo (20), Zagreb (10), Rijeka (<10), Marija Trost (<5), and in Delnice (<5).
Outside Croatia
Family name Štanfelj is present in this form only in Croatia.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.