In Croatia, Napijalo families are generally Serbs, rarely Croats (from Zapresic area ). In the past century, relatively most of Croatian residents bearing this family name were born in Duga Resa area and in Karlovac. In Kupljensko in Duga Resa area every sixth inhabitant had the family name Napijalo.
Prevalence
About 50 people with faimily name Napijalo live in Croatia today, in 20 households. There were 140 of them in the middle of the past century, and their number decreased significantly. They are located and threee other Croatian places, mostly in Kupljensko in Duga Resa area (40), Slavonski Brod (<5), Ogulin (<5), Zagreb (<5), and in Karlovac (<5).
Outside Croatia
At least four families with this surname emigrated from Croatia to: Australia (2), the United States (1), and to Sweden (1). Family name Napijalo is present in 6 countries on three continents. The family name "Napijalo " is used by small number of people in Germany , small number in Canada , and 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 1933 in source Emigration Commission Zagreb.