Borko families are Croats and they are mostly from Cakovec area. In the past century, relatively most of Croatian residents bearing this family name were born in Cakovec and in Cakovec area. In Hrastovljan in Ludbreg area every ninth inhabitant had the family name Borko.
Prevalence
About 290 people with faimily name Borko live in Croatia today, in 120 households. There were 210 of them in the middle of the past century, and their number increased by 40 percent. They are located in the most of Croatian counties, in 19 cities and 41 other places, mostly in Zagreb (45), Hrastovljan in Ludbreg area (25), Nedelisce in Cakovec area (20), Cakovec (15), and in Slavonski Brod (10).
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.