In Croatia, Gerželj families are predominantly Croats (from Kastel Sucurac ), rarely Slovenes (from Split ), and very rarely Montenegrins (also from Split ). In the past century, relatively most of Croatian residents bearing this family name were born in Split.
Prevalence
About 20 people with faimily name Gerželj live in Croatia today, in 7 households. There were 10 of them in the middle of the past century, and their number doubled. They are located in four Croatian cities only: in Split (15), Kastel Kambelovac (<5), Zagreb (<5), and in Vukovar (<5).
Outside Croatia
Family name Gerželj (including: Gerzelj , Gerzeli ) is present in 9 countries on three continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1930 in source Emigration Commission Zagreb.