In Croatia, Žiganto families are Croats (from Opatija ). In the past century, relatively most of Croatian residents bearing this family name were born in Rijeka and Opatija.
Prevalence
About 60 people with faimily name Žiganto live in Croatia today, in 30 households. There were 50 of them in the middle of the past century, and their number increased by 30 percent. They are only located in threee Croatian cities and 9 other places, mostly in Opatija (15), Poljane (10), Rijeka (<10), Icici (<10), and in Matulji in Opatija area (<10).
Outside Croatia
At least two families with this surname emigrated from Croatia to the United States. Family name Žiganto is present in two countries on two continents. The family name "Ziganto " is used by some 100 people in the United States.
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.