Halapa families are Croats and they are mostly from Bjelovar area. In the past century, relatively most of Croatian residents bearing this family name were born in Bjelovar and Zagreb. In Jasenik in Bjelovar area every eighth inhabitant had the family name Halapa.
Prevalence
About 120 people with faimily name Halapa live in Croatia today, in 50 households. There were 140 of them in the middle of the past century, and their number decreased by 10 percent. They are located in 10 Croatian counties, in 12 cities and 23 other places, mostly in Zagreb (20), Bjelovar (10), Sandrovac in Bjelovar area (10), Javorovac in Djurdjevac area (<10), and in Sesvete (<10).
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.