Kasunić families are Croats and they are mostly from Ogulin area. In the past century, relatively most of Croatian residents bearing this family name were born in Ogulin area and in Karlovac. In places Duga Gora and Brcković Draga in Ogulin area every second inhabitant had the family name Kasunić.
Prevalence
About 540 people with faimily name Kasunić live in Croatia today, in 220 households. There were 630 of them in the middle of the past century, and their number decreased by 10 percent. They are located in the most of Croatian counties, in 24 cities and 60 other places, mostly in Duga Resa (115), Karlovac (75), in Duga Gora (60) and Generalski Stol (55) in Ogulin area, and in Zagreb (35).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.