In Croatia, Kalačić families are generally Croats (from Dubrovnik area ), very rarely Slovenes (from Zagreb ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Dubrovnik and Rovinj.
Prevalence
About 30 people with faimily name Kalačić live in Croatia today, in 15 households. There were 30 of them in the middle of the past century, and their number remains constant. They are only located in four Croatian cities and two other places, mostly in Cilipi in Dubrovnik area (15), Rovinj (<10), Split (<10), Dubrovnik (<5), and in Zagreb (<5).