Ratkajec families are Croats and they are mostly from Klanjec. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Klanjec.
Prevalence
About 270 people with faimily name Ratkajec live in Croatia today, in 110 households. There were 290 of them in the middle of the past century, and their number decreased by 10 percent. They are located in 10 Croatian counties, in 16 cities and 35 other places, mostly in Zagreb (60), Sveti Ivan Zelina (15), Tomasevec (15), Turkovcina in Sveti Ivan Zelina area (10), and in Rakovec Tomasevecki (10).
Outside Croatia
Family name Ratkajec is present in five countries on two continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.