In Croatia, Caser families are predominantly Italians (from Rijeka ), rarely Croats (also from Rijeka ). In the past century, relatively most of Croatian residents bearing this family name were born in Rijeka.
Prevalence
Only a few people with faimily name Caser live in Croatia today, in three households only. There were 0 of them in the middle of the past century, and their number multiplied. They are located in one Croatian city only, in Rijeka (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1931 in source Emigration Commission Zagreb.