Plečko families are Croats and they are mostly from Zabok area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Zabok. In Gregurovec in Krapina area every seventh inhabitant had the family name Plečko.
Prevalence
About 400 people with faimily name Plečko live in Croatia today, in 170 households. There were 360 of them in the middle of the past century, and their number increased by 10 percent. They are located in the most of Croatian counties, in 23 cities and 45 other places, mostly in Zagreb (120), Selno in Krapina area (25), Oroslavje (25), Krapinske Toplice in Krapina area (20), and in Jalsje in Zabok area (15).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1669 in source Catholic Church Parish Records.