Karlovčan families are Croats and they are mostly from Djurdjevac area. In the past century, relatively most of Croatian residents bearing this family name were born in Djurdjevac area and in Virovitica.
Prevalence
About 90 people with faimily name Karlovčan live in Croatia today, in 40 households. There were 140 of them in the middle of the past century, and their number decreased by 40 percent. They are located in 6 Croatian counties, in 7 cities and 8 other places, mostly in Zagreb (25), Kalinovac in Djurdjevac area (25), Virovitica (15), Bjelovar (10), and in Djurdjevac (<10).
Outside Croatia
Family name Karlovčan is present in three countries on two continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.