Renka families are Croats and they are mostly from Delnice area. In the past century, relatively most of Croatian residents bearing this family name were born in Delnice area and in Pozega.
Prevalence
About 120 people with faimily name Renka live in Croatia today, in 40 households. There were 130 of them in the middle of the past century, and their number decreased by 0 percent. They are located in 9 Croatian counties, in 12 cities and 16 other places, mostly in Ravna Gora in Delnice area (20), Sulkovci (15), Stara Susica in Delnice area (10), Poloje (<10), and in Zagreb (<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.