In Croatia, Kelrajter families are generally Croats (from Koprivnica area ), rarely Germans (from Belisce ). In the past century, relatively most of Croatian residents bearing this family name were born in Koprivnica and Osijek.
Prevalence
About 20 people with faimily name Kelrajter live in Croatia today, in 6 households. There were 20 of them in the middle of the past century, and their number remains constant. They are located in only four naselja i to in Valpovo (<10), in Velika Mucna (<10) and Rasinja (<10) in Koprivnica area, and in Koprivnica (<5).
Outside Croatia
Family name Kelrajter is present in two countries.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.