Bajza families are Croats and they are mostly from Lepoglava area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Lepoglava area. In Poznanovec in Lepoglava area every twentieth inhabitant had the family name Bajza.
Prevalence
About 100 people with faimily name Bajza live in Croatia today, in 50 households. There were 70 of them in the middle of the past century, and their number increased by 40 percent. They are located in 6 Croatian counties, in 7 cities and 9 other places, mostly in Zagreb (35), Poznanovec in Lepoglava area (25), Sesvete (10), Kutina (<10), and in Selnica in Zlatar area (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.