In Croatia, Gunja families are Croats (from Karlovac ). In the past century, relatively most of Croatian residents bearing this family name were born in Karlovac and Zagreb. In Zaborsko Selo in Duga Resa area every eighth inhabitant had the family name Gunja.
Prevalence
About 20 people with faimily name Gunja live in Croatia today, in 6 households. There were 30 of them in the middle of the past century, and their number decreased by 40 percent. They are located in only four naselja i to in Karlovac (10), Jastrebarsko (<5), Rijeka (<5), and in Loncar Brdo in Duga Resa area (<5).