In Croatia, Šljerac families are Croats (from Zupanja area ). In the past century, relatively most of Croatian residents bearing this family name were born in Zupanja area and in Bosanian Posavina (Brcko area).
Prevalence
About 30 people with faimily name Šljerac live in Croatia today, in 11 households. There were 20 of them in the middle of the past century, and their number increased by 40 percent. They are located in only four naselja i to in Posavski Podgajci in Zupanja area (15), Zagreb (15), Vrbanja in Zupanja area (<5), and in Velika Gorica (<5).
Outside Croatia
Family name Šljerac is present in this form only in Croatia.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.