In Croatia, Arnoldt families are Croats (from Lepoglava area ).
Prevalence
Only a few people with faimily name Arnoldt live in Croatia today, in one household only. They are located in only one small Croatian place, in Mali Gorenec in Lepoglava area (<5).
Outside Croatia
Family name Arnoldt is present in 18 countries worldwide. The family name "Arnoldt " is used by some 500 people in Germany , about 200 in Argentina , and some 100 people in the United States. "Arnholdt " is used by some 300 people in Germany , about 200 in Brazil , and small number of people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over thirty times, the first time 1691 in source Catholic Church Parish Records.