In Croatia, Dan families are generally Croats (from Virovitica area ), very rarely Romanians (from Banat, Vojvodina ). In the past century, relatively most of Croatian residents bearing this family name were born in Virovitica area and in Zagreb.
Prevalence
About 20 people with faimily name Dan live in Croatia today, in 9 households. There were 10 of them in the middle of the past century, and their number doubled. They are located in only four naselja i to in Suhopolje in Virovitica area (10), Zagreb (<5), Soblinec (<5), and in Sesvete (<5).
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.