In Croatia, Porkulabić families are Croats (from Sveti Ivan Zelina area ). In the past century, relatively most of Croatian residents bearing this family name were born in Sveti Ivan Zelina area and in Zagreb.
Prevalence
About 30 people with faimily name Porkulabić live in Croatia today, in 13 households. There were 60 of them in the middle of the past century, and their number halved. They are located in four Croatian counties, four cities and four other places, mostly in Rakovec in Sveti Ivan Zelina area (15), Sesvete (<10), Prilesje (<5), Vetovo in Orahovica area (<5), and in Savska Cesta (<5).
Outside Croatia
Family name Porkulabić 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.