In Croatia, Delavec families are Croats (from Kutina area ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Makarska.
Prevalence
About 20 people with faimily name Delavec live in Croatia today, in 10 households. There were 20 of them in the middle of the past century, and their number remains constant. They are located in two Croatian counties, in one city and another small place , mostly in Zagreb (15) and Popovaca in Kutina area (<5).
Outside Croatia
Family name Delavec is present in 6 countries on three continents. "Delawez " is used by few people in the United States.