In Croatia, Mikšik families are Croats (from Pleternica ). In the past century, relatively most of Croatian residents bearing this family name were born in Pleternica and Hrvatska Kostajnica.
Prevalence
About 30 people with faimily name Mikšik live in Croatia today, in 15 households. There were 30 of them in the middle of the past century, and their number remains constant. They are only located in in 6 Croatian cities and 5 other places, mostly in Buk (<10), Svilna (<10), Novska (<5), Zagreb (<5), and in Slavonski Brod (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over thirty times, the first time 1750 in source 18th Century Census.