In Croatia, Opalka families are Croats (from Zupanja area ). In the past century, relatively most of Croatian residents bearing this family name were born in Bosanian Posavina (Brcko area).
Prevalence
Only a few people with faimily name Opalka live in Croatia today, in four households only. There were 0 of them in the middle of the past century, and their number multiplied. They are located in only two Croatian places: in Gunja in Zupanja area (<10) and Marina in Trogir area (<5).
Outside Croatia
Family name Opalka (including: Opálka , Opalca ) is present in 19 countries on four continents. The family name "Opalka " is used by some 1000 people in Poland , about 1000 in the United States , and some 700 people in Germany.
