Sertić families are Croats and they are mostly from Slunj area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Senj area. In Sertić Poljana in Otocac area nearly every inhabitant had the family name Sertić.
Prevalence
About 2100 people with faimily name Sertić live in Croatia today, in 950 households. There were 2300 of them in the middle of the past century, and their number decreased by 10 percent. They are located in all Croatian counties, in 75 cities and 163 other places, mostly in Zagreb (510), Rijeka (110), Karlovac (80), Sisak (75), and in Jezerane in Senj area (75).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over eighty times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.