In Croatia, Kokša families are Croats (from Djurdjevac area ). In the past century, relatively most of Croatian residents bearing this family name were born in Djurdjevac area and in Koprivnica.
Prevalence
About 40 people with faimily name Kokša live in Croatia today, in 15 households. There were 60 of them in the middle of the past century, and their number decreased by 30 percent. They are located in threee Croatian counties, four cities and threee other places, mostly in Molve in Djurdjevac area (25), Koprivnica (10), Repas in Djurdjevac area (<5), Zagreb (<5), and in Zadar (<5).
Outside Croatia
Family name Kokša (including: Koksa , Koksha and Kocsa ) is present in 13 countries on three continents. "Kocsa " is used by small number of people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.