Leder families are frequently Croats and they are mostly from Velika Gorica , less frequently Czechs (Daruvar area). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Velika Gorica.
About 140 people with faimily name Leder live in Croatia today, in 60 households. There were 90 of them in the middle of the past century, and their number increased by 50 percent. They are located in four Croatian counties and 7 other places, mostly in Velika Gorica (85), Sesvete (20), Donji Sredjani in Daruvar area (15), Zagreb (15), and in Ruca in Ivanic-Grad area (<10).