In Croatia, Lenček families are almost entirely Croats (from Ludbreg area ), barely Slovenes (from Umag ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Ludbreg area.
Prevalence
About 40 people with faimily name Lenček live in Croatia today, in 17 households. There were 30 of them in the middle of the past century, and their number increased by 20 percent. They are located in 6 Croatian counties, four cities and 6 other places, mostly in Zagreb (10), Martijanec in Ludbreg area (<10), Ludbreg (<10), Hrvatski Leskovac (<10), and in Slokovec (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.