Only a few people with faimily name Piazza live in Croatia today, in one household only. There were 20 of them in the middle of the past century, and their number decreased significantly. They are located in only one small Croatian place, in Bregana (<5).
Outside Croatia
Family name Piazza is present in 70 countries worldwide. The family name "Piazza " is used by some 20000 people in Italy , about 10000 in the United States , and some 7000 people in Brazil.