In Croatia, Theimer families are predominantly Croats (from the Island of Losinj ), rarely Germans (from Rijeka ). In the past century, relatively most of Croatian residents bearing this family name were born on the Island of Losinj and in Rijeka.
Prevalence
Only a few people with faimily name Theimer live in Croatia today, in one household only. They are located in one Croatian city only, in Mali Losinj on the Island of Losinj (<10).