In Croatia, Pilaković families are mainly Croats (from Duga Resa ), less frequently Bosniaks (from Labin ), and very rarely Slovenes (from Kastav ). In the past century, relatively most of Croatian residents bearing this family name were born in Bosanian Posavina (Gradacac area) and in Duga Resa. In Zelinja Srednja in Bosanian Posavina every ninth inhabitant had the family name Pilaković.
Prevalence
About 30 people with faimily name Pilaković live in Croatia today, in 12 households. There were 20 of them in the middle of the past century, and their number increased by 30 percent. They are located in 6 Croatian counties, in 6 cities and two other places, mostly in Labin (10), Zagreb (<10), Duga Resa (<10), Kastav (<5), and in Marinici in Rijeka area (<5).
Outside Croatia
Family name Pilaković is present in three countries on two continents. The family name "Pilakovic " is used by small number of people in the United States and small number in Denmark.
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.