In Croatia, Kajgana families are mainly Croats (from Garesnica ), less frequently Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Garesnica and Zagreb.
Prevalence
About 60 people with faimily name Kajgana live in Croatia today, in 30 households. There were 110 of them in the middle of the past century, and their number halved. They are located in 6 Croatian counties, in 9 cities and 5 other places, mostly in Zagreb (15), Nasice (<10), Garesnica (<10), Bjelovar (<10), and in Kutina (<10).
Outside Croatia
Family name Kajgana is present in 8 countries on three continents. "Kaigana " is used by few people in the United States.