In Croatia, Dorcich families are Croats (from Rijeka ). In the past century, relatively most of Croatian residents bearing this family name were born in Rijeka.
Prevalence
Only a few people with faimily name Dorcich 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 one Croatian city only, in Rijeka (<5).
Outside Croatia
Family name Dorcich is present in 8 countries worldwide. The family name "Dorcich " is used by small number of people in the United States , small number in El Salvador , and small number of people in Italy.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over thirty times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.