Laljek families are Croats and they are mostly from Lepoglava area. In the past century, relatively most of Croatian residents bearing this family name were born in Koprivnica and Zagreb. In Šaša in Lepoglava area every ninth inhabitant had the family name Laljek.
Prevalence
About 90 people with faimily name Laljek live in Croatia today, in 40 households. There were 40 of them in the middle of the past century, and their number doubled. They are located in 6 Croatian counties, in 7 cities and 9 other places, mostly in Zagreb (25), Varazdin (20), Koprivnica (15), Sasa in Lepoglava area (<10), and in Lepoglava (<10).
Outside Croatia
Family name Laljek is present in three countries on two continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.