In Croatia, Lačen families are Croats (from Oroslavje ). In the past century, relatively most of Croatian residents bearing this family name were born in Slavonski Brod and Zagreb.
About 30 people with faimily name Lačen live in Croatia today, in 11 households. There were 20 of them in the middle of the past century, and their number increased by 30 percent. They are located in 7 Croatian counties, in 6 cities and another small place , mostly in Slavonski Brod (<10), Sisak (<10), Oroslavje (<10), Donja Bistra in Oroslavje area (<5), and in Varazdin (<5).