In Croatia, Trpkov 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 Trpkov live in Croatia today, in three households only. They are located in only two Croatian places: in Rijeka (<5) and Zupanje on the Island of Krk (<5).
Outside Croatia
Family name Trpkov is present in 12 countries on three continents.