In Croatia, Lesac families are generally Croats (from Vrbovsko ), very rarely Slovenes (from Rijeka ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Vrbovsko and Rijeka. In Lesci in Vrbovsko every fourth inhabitant had the family name Lesac.
Prevalence
About 40 people with faimily name Lesac live in Croatia today, in 17 households. There were 60 of them in the middle of the past century, and their number decreased by 40 percent. They are located in threee Croatian counties, in 6 cities and two other places, mostly in Rijeka (20), Vrbovsko (<10), Zagreb (<10), Gorenci (<10), and in Delnice (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1923 in source Emigration Commission Zagreb.