Lilek families are Croats and they are mostly from Ludbreg. In the past century, relatively most of Croatian residents bearing this family name were born in Ludbreg and Zagreb.
Prevalence
About 130 people with faimily name Lilek live in Croatia today, in 60 households. There were 160 of them in the middle of the past century, and their number decreased by 20 percent. They are located in the most of Croatian counties, in 12 cities and 16 other places, mostly in Zagreb (20), Ludbreg (15), Kapela Podravska in Ludbreg area (15), Prelog (15), and in Cakovec (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.