Rajka is a female name, in Croatia almost exclusively Croatian. It is one of the quite common names (among the top thousand) in Croatia, with over a thousand namesakes living there.
The relative popularity of names Rajka in Croatia
The name Rajka was the most popular from years 1951 to 1960. The peak year was 1960. It was the least popular from years 1981 to 1991.
Name Rajka is present mainly in North-West Croatia, and scarcely in Central Croatia. Most of the persons named Rajka live in the following cities and municipalities: Zagreb (over two hundred), Rijeka (about sixty), Zadar (about fifty). Relatively speaking, the city with the highest percentage of namesakes is Janjina (0.3% of total population).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.