In Croatia, Luc families are almost entirely Croats (from Prelog area ), very rarely Germans. In the past century, relatively most of Croatian residents bearing this family name were born in Osijek and Slavonski Brod.
Prevalence
About 30 people with faimily name Luc live in Croatia today, in 11 households. There were 70 of them in the middle of the past century, and their number decreased significantly. They are only located in four Croatian cities and four other places, mostly in Slavonski Brod (<10), Kotoriba in Prelog area (<10), Zagreb (<5), Osijek (<5), and in Tenja (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.