In Croatia, Kugli families are generally Croats (from Nasice ), rarely Hungarians (from Banat, Vojvodina ). In the past century, relatively most of Croatian residents bearing this family name were born in Osijek and Nasice. In Sulkovci in Pleternica every seventieth inhabitant had the family name Kugli.
Prevalence
About 30 people with faimily name Kugli live in Croatia today, in 18 households. There were 20 of them in the middle of the past century, and their number increased by 30 percent. They are located in 6 Croatian counties, in 7 cities and two other places, mostly in Orahovica (<10), Zagreb (<10), Zadar (<10), Stupno (<10), and in Osijek (<5).
Outside Croatia
Family name Kugli is present in 8 countries on four continents. The family name "Kugli " is used by small number of people in Hungary and small number in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.