Gruičić families are mainly Croats and they are mostly from Slavonski Brod area , whereas often Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Gospic area and in Zagreb. In Mlakva in Gospic area every fourth inhabitant had the family name Gruičić.
Prevalence
About 100 people with faimily name Gruičić live in Croatia today, in 60 households. There were 140 of them in the middle of the past century, and their number decreased by 30 percent. They are located in the most of Croatian counties, in 15 cities and 10 other places, mostly in Zagreb (40), Kutina (10), Gromacnik in Slavonski Brod area (10), Mlakva in Gospic area (10), and in Orubica in Nova Gradiska area (<10).
Outside Croatia
Family name Gruičić (including: Gruicic , Gruichich ) is present in 9 countries on three continents. "Gruichich " is used by small number of people in the United States.
