Lemac families are Croats and they are mostly from Drnis. In the past century, relatively most of Croatian residents bearing this family name were born in Drnis and Sibenik. In Radonić in Drnis every seventh inhabitant had the family name Lemac.
Prevalence
About 180 people with faimily name Lemac live in Croatia today, in 60 households. There were 20 of them in the middle of the past century, and their number multiplied. They are located in 6 Croatian counties, in 9 cities and 6 other places, mostly in Sibenik (100), Zagreb (25), Kastel Sucurac (10), Kastel Luksic (<10), and in Vodice (<10).
Outside Croatia
Family name Lemac (including: Lemach , Lemaz ) is present in 15 countries worldwide. "Lemaz " is used by few people in the United States.
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.