In Croatia, Schwarz families are Croats (from the Island of Hvar ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Sisak.
Prevalence
About 40 people with faimily name Schwarz live in Croatia today, in 20 households. There were 30 of them in the middle of the past century, and their number increased by 30 percent. They are located in 7 Croatian counties, in 7 cities and 5 other places, mostly in Zagreb (20), Hvar on the Island of Hvar (<5), Rijeka (<5), Banjol on the Island of Rab (<5), and in Sisak (<5).
Outside Croatia
Family name Schwarz is present in 110 countries worldwide. The family name "Schwarz " is used by some 100000 people in Germany , about 20000 in the United States , and some 10000 people in Austria.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over a hundred times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.