Žlender families are Croats and they are mostly from Klanjec area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Osijek.
Prevalence
About 120 people with faimily name Žlender live in Croatia today, in 40 households. There were 90 of them in the middle of the past century, and their number increased by 30 percent. They are located in 8 Croatian counties, in 8 cities and 13 other places, mostly in Zagreb (50), Pristava in Klanjec area (15), Petrijevci in Valpovo area (10), Palesnik in Garesnica area (10), and in Samatovci in Valpovo area (<10).
Outside Croatia
Family name Žlender 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 2007 in source Encyclopaedia of Croatian Surnames.