In Croatia, Acalin families are Croats (from Sibenik ). In the past century, relatively most of Croatian residents bearing this family name were born in Sibenik.
Prevalence
About 10 people with faimily name Acalin live in Croatia today, in 6 households. There were 30 of them in the middle of the past century, and their number decreased significantly. They are located in only five naselja i to in Sibenik (<10), Zlarin (<5), Zagreb (<5), Dubrovnik (<5), and in Mokosica (<5).
Outside Croatia
Family name Acalin (including: Azzalin , Azalin ) is present in 17 countries worldwide. The family name "Acalin " is used by small number of people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1927 in source Emigration Commission Zagreb.