In Croatia, Filer families are Croats (from Djakovo area ). In the past century, relatively most of Croatian residents bearing this family name were born in Slavonski Brod and in Djakovo area.
Prevalence
Only a few people with faimily name Filer live in Croatia today, in four households only. There were 30 of them in the middle of the past century, and their number decreased significantly. They are located in only threee naselja i to in Osijek (<10), Mala Kopanica in Djakovo area (<5), and in Zagreb (<5).