Trnava is a small city located in Osijek-Baranja County in eastern Croatia. It is situated in the northeastern part of the country, in a region known for its agricultural character and proximity to the Danube River valley.
As a settlement in Osijek-Baranja County, Trnava is part of a historically significant region of Croatia. The county itself has been shaped by various cultural influences due to its geographic location between Central Europe and the Balkans. Like many smaller cities in this area, Trnava serves as a local administrative and economic center for the surrounding communities.