In Croatia, Portada families are Croats (from Novigrad ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and on the Island of Pag.
Prevalence
About 30 people with faimily name Portada live in Croatia today, in 9 households. There were 20 of them in the middle of the past century, and their number increased by 10 percent. They are located in threee Croatian counties and another small place , mostly in Zagreb (10), Paljuv in Novigrad Area in Dalmatia (<10), Pag on the Island of Pag (<10), Mokosica (<5), and in Zadar (<5).
Outside Croatia
At least two families with this surname emigrated from Croatia to the United States. Family name Portada is present in 12 countries worldwide.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1942 in source Phone Directory of the Independent State of Croatia 1942.