In Croatia, Geras families are predominantly Jews (from Zagreb ), rarely Croats (also from Zagreb ).
Prevalence
Only a few people with faimily name Geras live in Croatia today, in three households only. They are located in one Croatian city only, in Zagreb (<10).
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.