Pek families are Croats and they are mostly from Krapina area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Zapresic.
Prevalence
About 260 people with faimily name Pek live in Croatia today, in 120 households. There were 280 of them in the middle of the past century, and their number decreased by 10 percent. They are located in the most of Croatian counties, in 24 cities and 27 other places, mostly in Zagreb (65), Gornje Jesenje in Krapina area (25), Osijek (15), Bracevci in Djakovo area (15), and in Pojatno (15).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.