In Croatia, Pacas families are Croats (from Bjelovar ).
Prevalence
Only a few people with faimily name Pacas live in Croatia today, in four households only. There were 0 of them in the middle of the past century, and their number multiplied. They are located in one Croatian city only, in Bjelovar (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.