In Croatia, Heller families are generally Croats (from Slavonski Brod ), very rarely Austrians (from Osijek ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Slavonski Brod.
Prevalence
About 20 people with faimily name Heller live in Croatia today, in 9 households. There were 10 of them in the middle of the past century, and their number doubled. They are located in 7 Croatian counties, in 7 cities, mostly in Rijeka (<10), Slavonski Brod (<10), Velika Gorica (<10), Osijek (<5), and in Rezovac (<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.