In Croatia, Grgantov families are almost entirely Croats (from Kastel Sucurac ), barely Albanians (also from Kastel Sucurac ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Split and Rijeka.
Prevalence
About 60 people with faimily name Grgantov live in Croatia today, in 20 households. There were 50 of them in the middle of the past century, and their number increased by 10 percent. They are located in four Croatian counties, in 8 cities and 5 other places, mostly in Kastel Luksic (35), Rijeka (<10), Kastel Gomilica (<10), Krk on the Island of Krk (<10), and in Kastel Kambelovac (<10).
Outside Croatia
Family name Grgantov is present in three countries on two continents. The family name "Grgantov " is used by few people in the United States.
