Only a few people with faimily name Duncovich live in Croatia today, in one household only. There were 0 of them in the middle of the past century, and their number multiplied. They are located in one Croatian city only, in Cres on the Island of Cres (<5).
Outside Croatia
Family name Duncovich is present in two countries on two continents. The family name "Duncovich " is used by small number of 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.