In Croatia, Gertner families are generally Croats (from Vinkovci area ), very rarely Germans. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Zupanja area.
Prevalence
About 10 people with faimily name Gertner live in Croatia today, in 6 households. There were 60 of them in the middle of the past century, and their number decreased significantly. They are located in only five naselja i to in Nustar in Vinkovci area (<10), Zapresic (<5), Gunja in Zupanja area (<5), Mandalencici in Pazin area (<5), and in Zagreb (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1926 in source Emigration Commission Zagreb.