In Croatia, Kalan families are almost entirely Croats (from Ogulin area ), barely Slovenes (from Slovenia ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Ogulin area.
Prevalence
About 60 people with faimily name Kalan live in Croatia today, in 30 households. There were 30 of them in the middle of the past century, and their number doubled. They are only located in in 7 Croatian cities and 5 other places, mostly in Zagreb (15), Potok Tounjski in Ogulin area (<10), Velika Kosnica (<10), Duga Resa (<5), and in Brodski Drenovac (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1930 in source Emigration Commission Zagreb.