In Croatia, Hapčo families are Croats (from Buzet ). In the past century, relatively most of Croatian residents bearing this family name were born in Senj.
Prevalence
Only a few people with faimily name Hapčo live in Croatia today, in two households only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in only one small Croatian place, in Senj (<10).
Outside Croatia
Family name Hapčo (including: Hapco , Chapco and Chiapco ) is present in 9 countries worldwide.