Amposta is a city located in the Catalonia region of Spain. It serves as the capital of the comarca of Montsià within the province of Tarragona. The city is situated approximately 190 kilometers south of Barcelona along the Mediterranean Coast.
The city sits at an elevation of 8 meters above sea level and is positioned on the Ebre river, located near the river's mouth. It has a population of 23,080 residents.