In Croatia, Lač families are predominantly Croats (from Ilok area ), rarely Hungarians (also from Ilok area ). In the past century, relatively most of Croatian residents bearing this family name were born in Osijek and in Ilok area.
Prevalence
About 10 people with faimily name Lač live in Croatia today, in five households only. There were 20 of them in the middle of the past century, and their number halved. They are located in only four naselja i to in Osijek (<10), Beli Manastir (<5), Opatovac in Ilok area (<5), and in Porec (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over forty times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.