In Croatia, Grugan families are Croats (from Sveti Ivan Zelina ). In the past century, relatively most of Croatian residents bearing this family name were born in Sveti Ivan Zelina and Zagreb. In Suhodol Zelinski in Sveti Ivan Zelina every second inhabitant had the family name Grugan.
Prevalence
About 30 people with faimily name Grugan live in Croatia today, in 11 households. There were 50 of them in the middle of the past century, and their number decreased by 50 percent. They are located in two Croatian counties, two cities and 9 other places, mostly in Suhodol Zelinski (<10), Luzan (<5), Blazevdol (<5), Sveti Ivan Zelina (<5), and in Donje Oresje (<5).
Outside Croatia
Family name Grugan is present in 7 countries on three continents. The family name "Grugan " is used by some 300 people in the United States and small number in Australia.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.
