In Croatia, Kaužljar families are Croats (from Slunj area ). In the past century, relatively most of Croatian residents bearing this family name were born in Nova Gradiska and in Slunj area. In Gojkovac in Slunj area every fifth inhabitant had the family name Kaužljar.
Prevalence
About 20 people with faimily name Kaužljar live in Croatia today, in 14 households. They are only located in threee Croatian cities and 6 other places, mostly in Gojkovac in Slunj area (<10), Bili Brig in Pozega area (<10), Zagreb (<5), Okucani in Nova Gradiska area (<5), and in Grginac in Bjelovar area (<5).
Outside Croatia
At least three families with this surname emigrated from Croatia to the United States. Family name Kaužljar is present in three countries on two continents. The family name "Kauzljar " is used by small number of people in the United States.