In Croatia, Bulva families are Italians (from Samobor ).
Prevalence
Only a few people with faimily name Bulva live in Croatia today, in two households only. There were 20 of them in the middle of the past century, and their number decreased significantly. They are located in four Croatian cities only: in Rijeka (<5), Samobor (<5), Badljevina (<5), and in Radocaj Brodski (<5).