Nikolac families are Croats and they are mostly from Ploce. In the past century, relatively most of Croatian residents bearing this family name were born in Metkovic and Ploce. In Šarić Struga in Ploce nearly every inhabitant had the family name Nikolac.
Prevalence
About 290 people with faimily name Nikolac live in Croatia today, in 120 households. There were 200 of them in the middle of the past century, and their number increased by 50 percent. They are located in 10 Croatian counties, in 18 cities and 14 other places, mostly in Saric Struga (125), Ploce (55), Zagreb (30), Metkovic (15), and in Opatija (15).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.