In Croatia, Greguric families are Croats (from Petrinja area ). In the past century, relatively most of Croatian residents bearing this family name were born in Sveti Ivan Zelina and in Petrinja area.
Prevalence
Only a few people with faimily name Greguric live in Croatia today, in two households only. They are located in two Croatian cities only, in Zagreb (<5) and Donja Zelina (<5).
Outside Croatia
Family name Greguric is present in 15 countries on four continents. The family name "Greguric " is used by small number of people in the United States , small number in Germany , and small number of people in Hungary. "Gregurich " is used by some 300 people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over forty times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.