For all cities with a population greater than one million, Concordia is closest to Rosario and farthest from Shanghai. The closest foreign city is Montevideo and the farthest domestic city is Córdoba. See below for the top 5 closest and farthest cities (domestically, internationally and by continent) and to see which cities, if any, Concordia is the closest and farthest to. Filter to include all cities over 100k, 500k or 1 million in population.