Hrastić families are Croats and they are mostly from Varazdin area. In the past century, relatively most of Croatian residents bearing this family name were born in Varazdin and Zagreb.
Prevalence
About 370 people with faimily name Hrastić live in Croatia today, in 160 households. There were 320 of them in the middle of the past century, and their number increased by 20 percent. They are located in the most of Croatian counties, in 23 cities and 47 other places, mostly in Zagreb (60), Sveti Ilija in Varazdin area (35), Martijanec in Ludbreg area (25), Varazdin (25), and in Pazin (20).
Outside Croatia
Family name Hrastić (including: Hrastic , Hrastich ) is present in 7 countries on three continents. "Hrastich " is used by small number of people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1679 in source Catholic Church Parish Records.