In Croatia, Dujmov families are almost entirely Croats (from Kastel Sucurac ), barely Montenegrins, and . In the past century, relatively most of Croatian residents bearing this family name were born in Split and Zadar.
Prevalence
About 70 people with faimily name Dujmov live in Croatia today, in 30 households. There were 40 of them in the middle of the past century, and their number increased by 60 percent. They are located in 6 Croatian counties, in 6 cities and 7 other places, mostly in Kastel Stafilic (35), Zadar (10), Molat (<10), Kastel Stari (<10), and in Trogir (<10).
Outside Croatia
Family name Dujmov is present in 8 countries on three continents. The family name "Dujmov " 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.