In Croatia, Tolnai families are Hungarians (from Osijek area ). In the past century, relatively most of Croatian residents bearing this family name were born in Osijek area and in Osijek.
Prevalence
Only a few people with faimily name Tolnai live in Croatia today, in three households only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in only one small Croatian place, in Lug in Osijek area (<10).
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.