In Croatia, Ridl families are Croats (from Garesnica area ). In the past century, relatively most of Croatian residents bearing this family name were born in Osijek and in Osijek area.
Prevalence
About 20 people with faimily name Ridl live in Croatia today, in 9 households. There were 30 of them in the middle of the past century, and their number decreased by 30 percent. They are located in only four naselja i to in Osijek (10), Zagreb (<5), Velika Mlinska in Garesnica area (<5), and in Vis on the Island of Vis (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.