Concordia, officially San Antonio de Padua de la Concordia, is a city and municipality that is the head town of the Concordia department, Entre RÃÂos Province, located in the Argentine Mesopotamia. It has 179,203 inhabitants according to the , making it the second largest in its province, and the 24th largest in Argentina.
The area was inhabited by the Charrúas and the Yaro people when the Spanish had arrived.
The city was founded in November 1831.
Concordia lies on the right-hand (western) shore of the Uruguay River, opposite the city of Salto in Uruguay. The two cities are joined by a road/railway link that is part of the Salto Grande Dam complex (starting on the Argentine side 18 km north from the center of Concordia). It is located approximately 430 km north of Buenos Aires.
According to the Köppen climate classification, Concordia has a humid subtropical climate (Cfa). Mean monthly temperatures range from in July, the coldest month, to in January, the warmest month. Concordia receives a mean annual precipitation of . Fall (March to May) is the wettest season while winter (June to August) is the driest season. However, there is great year to year variability in annual precipitation. The frost free period is 10 months long and in an average year, there are 8.6 days with frost.
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The city is known as the national capital of citrus production. El Palmar National Park, an important reserve for Yatay palm trees, lies 60 km south of the city.
Like most settlements by the Uruguay River, Concordia suffers from intense floods. In 2015, a major flood left around 20,000 residents evacuated from the city.
As of 2022, Concordia has a population of 179,203 inhabitants. Over half of them live under the poverty line, this being the third highest percentage in Argentina, after Resistencia and Formosa.
The area is served by an airport located at .
The airport was rebuilt and finished by March 31, 2025. It reopened in September 2025, after being under construction since 2022.