In Croatia, Grčanac families are Croats (from Ilok area ). In the past century, relatively most of Croatian residents bearing this family name were born in Ilok area and in Vukovar.
Prevalence
About 20 people with faimily name Grčanac live in Croatia today, in 10 households. They are located in threee Croatian counties, threee cities and threee other places, mostly in Lovas in Ilok area (10), Zagreb (<5), in Baska (<5) and Jurandvor (<5) on the Island of Krk, and in Vinkovci (<5).
Outside Croatia
Family name Grčanac is present in three countries on two continents. The family name "Grcanac " is used by few 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.