In Croatia, Andersson families are Croats (from Zadar ).
Prevalence
About 10 people with faimily name Andersson live in Croatia today, in one household only. They are located in four Croatian cities only: in Zagreb (<5), Zadar (<5), Makarska (<5), and in Trogir (<5).
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.