In Croatia, Tomažin families are generally Croats (from Vodice ), barely Slovenes (from Pula ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Vodice and Sibenik.
Prevalence
About 40 people with faimily name Tomažin live in Croatia today, in 19 households. There were 60 of them in the middle of the past century, and their number decreased by 30 percent. They are located in 8 Croatian counties, in 6 cities and 5 other places, mostly in Tribunj (15), Zapresic (<10), Punat on the Island of Krk (<5), Zagreb (<5), and in Split (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1930 in source Emigration Commission Zagreb.