In Croatia, Rap families are Croats (from Slatina area ). In the past century, relatively most of Croatian residents bearing this family name were born in Slatina area and in Osijek.
Prevalence
Only a few people with faimily name Rap live in Croatia today, in three households only. There were 30 of them in the middle of the past century, and their number decreased significantly. They are only located in in one Croatian city and another small place , mostly in Slatina (<5) and Cadjavica in Slatina area (<5).
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.