Poša families are Croats and they are mostly from the Island of Korcula. In the past century, relatively most of Croatian residents bearing this family name were born on the Island of Korcula and in Dubrovnik. In Pupnat on the Island of Korcula every eighth inhabitant had the family name Poša.
Prevalence
About 150 people with faimily name Poša live in Croatia today, in 70 households. There were 200 of them in the middle of the past century, and their number decreased by 30 percent. They are located in 8 Croatian counties, in 14 cities and 13 other places, mostly in Pupnat on the Island of Korcula (45), Split (25), in Korcula (20) and Racisce (15) on the Island of Korcula, and in Dubrovnik (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.