Posarić families are Croats and they are mostly from Zlatar. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Zlatar. In places Cetinovec and Borkovec in Zlatar every fifth inhabitant had the family name Posarić.
Prevalence
About 430 people with faimily name Posarić live in Croatia today, in 170 households. There were 330 of them in the middle of the past century, and their number increased by 30 percent. They are located in the most of Croatian counties, in 25 cities and 57 other places, mostly in Zagreb (85), Zlatar (65), Mace in Zlatar area (40), Kutina (25), and in Vrbovec (20).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.