In Croatia, Plesec families are Croats (from Bjelovar area ). In the past century, relatively most of Croatian residents bearing this family name were born in Djurdjevac area and in Duga Resa.
Prevalence
About 30 people with faimily name Plesec live in Croatia today, in 12 households. There were 40 of them in the middle of the past century, and their number decreased by 10 percent. They are located in 6 Croatian counties, four cities and 8 other places, mostly in Sesvete (10), Pitomaca in Djurdjevac area (<10), Orovac in Bjelovar area (<5), Skupica in Duga Resa area (<5), and in Duga Resa (<5).
Outside Croatia
Family name Plesec is present in 8 countries on three continents. The family name "Plesec " is used by some 60 people in the United States , small number in Germany , and small number of people in Canada. "Plesetz " is used by small number of people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1938 in source Emigration Commission Zagreb.