About 10 people with faimily name Tadija live in Croatia today, in 6 households. There were 30 of them in the middle of the past century, and their number decreased significantly. They are located in threee Croatian counties, two cities and two other places, mostly in Pasman on the Island of Pasman (<10), Rijeka (<5), Spisic Bukovica in Virovitica area (<5), and in Virovitica (<5).
Outside Croatia
Family name Tadija (including: Tadiya , Thadhiya , Thadiya and Tadieva ) is present in 7 countries on three continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1931 in source Emigration Commission Zagreb.