In Croatia, Klapšec families are Croats (from Zagreb ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb.
Prevalence
About 20 people with faimily name Klapšec live in Croatia today, in 7 households. There were 50 of them in the middle of the past century, and their number decreased significantly. They are located in two Croatian cities only, in Zagreb (20) and Lepsic (<5).
Outside Croatia
Family name Klapšec is present in this form only in Croatia.
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.