In the past century, relatively most of Croatian residents bearing this family name were born in Split.
Prevalence
Only a few people with faimily name Šimunđa live in Croatia today, in one household only. There were 0 of them in the middle of the past century, and their number remains constant. They are located in one Croatian city only, in Split (<5).
Outside Croatia
Family name Šimunđa (including: Simundja , Shimunda ) is present in three countries on two continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1926 in source Emigration Commission Zagreb.