In Croatia, Lačok families are mainly Croats (from Ilok ), equally Slovaks (from Backa, Vojvodina ). In the past century, relatively most of Croatian residents bearing this family name were born in Ilok and in Backa, Vojvodina.
Prevalence
About 20 people with faimily name Lačok live in Croatia today, in 6 households. They are located in only threee naselja i to in Ilok (15), Rovinj (10), and in Istocni Trojvrh in Ogulin area (<5).