In Croatia, Bulf families are Croats (from Ludbreg ). In the past century, relatively most of Croatian residents bearing this family name were born in Ludbreg and Zagreb.
Prevalence
About 60 people with faimily name Bulf live in Croatia today, in 30 households. There were 50 of them in the middle of the past century, and their number increased by 20 percent. They are located in 7 Croatian counties and 11 other places, mostly in Ludbreg (10), Zagreb (<10), Pula (<5), Pozega (<5), and in Hrastovsko (<5).
Outside Croatia
Family name Bulf is present in 10 countries on four continents. The family name "Bulf " is used by some 200 people in Romania , about 100 in Italy , and some 70 people in the United States.