In Croatia, Hersa families are Croats (from Samobor ). In the past century, relatively most of Croatian residents bearing this family name were born in Samobor and Zagreb. In Šipački Breg in Samobor every eighth inhabitant had the family name Hersa.
Prevalence
About 20 people with faimily name Hersa live in Croatia today, in 7 households. There were 20 of them in the middle of the past century, and their number remains constant. They are located in two Croatian counties, four cities and two other places, mostly in Sipacki Breg (<10), Samobor (<10), Brezari (<5), Velika Gorica (<5), and in Karlovac (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.