Tominović families are Croats and they are mostly from Petrinja. In the past century, relatively most of Croatian residents bearing this family name were born in Petrinja and in Pleternica area.
Prevalence
About 80 people with faimily name Tominović live in Croatia today, in 40 households. There were 130 of them in the middle of the past century, and their number decreased by 40 percent. They are only located in in 7 Croatian cities and 8 other places, mostly in Gora (20), Pula (<10), Petrinja (<10), Zagreb (<10), and in Slavonski Brod (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.