In Croatia, Zainer families are Croats (from Bjelovar ).
Prevalence
Only a few people with faimily name Zainer live in Croatia today, in two households only. They are located in only one small Croatian place, in Gornje Plavnice (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.