Roksa families are Croats and they are mostly from Petrinja. In the past century, relatively most of Croatian residents bearing this family name were born in Petrinja and Sisak. In Donje Mokrice in Petrinja every eighth inhabitant had the family name Roksa.
Prevalence
About 90 people with faimily name Roksa live in Croatia today, in 40 households. There were 170 of them in the middle of the past century, and their number halved. They are only located in in 7 Croatian cities and 10 other places, mostly in Petrinja (20), Hrastovica (15), Gora (10), Novi Farkasic (10), and in Zreme in Hrvatska Kostajnica area (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.