Plevnjak families are Croats and they are mostly from Cakovec area. In the past century, relatively most of Croatian residents bearing this family name were born in Cakovec and in Cakovec area.
Prevalence
About 100 people with faimily name Plevnjak live in Croatia today, in 40 households. There were 100 of them in the middle of the past century, and their number remains constant. They are located in four Croatian counties, in 6 cities and 20 other places, mostly in Cakovec (45), Mackovec (<10), Podturen in Mursko Sredisce area (<10), Prelog (<5), and in Mihovljan (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1927 in source Emigration Commission Zagreb.