In Croatia, Loidl families are Croats (from Osijek ).
Prevalence
Only a few people with faimily name Loidl live in Croatia today, in one household only. They are located in one Croatian city only, in Osijek (<5).
Outside Croatia
Family name Loidl is present in 20 countries worldwide. The family name "Loidl " is used by some 2000 people in Austria , about 800 in Germany , and some 70 people in the United States.
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.