Lanča families are almost entirely Croats and they are mostly from Pazin area , rarely Italians. In the past century, relatively most of Croatian residents bearing this family name were born in Pula and Pazin.
Prevalence
About 160 people with faimily name Lanča live in Croatia today, in 70 households. There were 180 of them in the middle of the past century, and their number decreased by 10 percent. They are located in four Croatian counties, in 10 cities and 23 other places, mostly in Pula (30), Pazin (15), Rovinj (10), Opatija (<10), and in Jakacici in Pazin area (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.