In Croatia, Ser families are Hungarians (from Beli Manastir area ). In the past century, relatively most of Croatian residents bearing this family name were born in Beli Manastir area.
Prevalence
Only a few people with faimily name Ser live in Croatia today, in one household only. There were 10 of them in the middle of the past century, and their number decreased significantly. They are located in only one small Croatian place, in Batina in Beli Manastir area (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1927 in source Emigration Commission Zagreb.