Medellín is the second-largest city in Colombia and the capital of the department of Antioquia. It is located in the Aburrá Valley, a central region of the Andes Mountains in South America. The city has an estimated population of 2.5 million as of 2017. The metropolitan area of Medellín is the second-largest urban agglomeration in Colombia in terms of population and economy, with more than 3.7 million people.
Medellín is important to the region for its universities, academies, commerce, industry, science, health services, flower-growing and festivals.
Medellín is one of Colombia's economic centers. Its economy is led by a powerful group of people from the private sector known as the Grupo Empresarial Antioqueño (Antioquian Enterprises Group). Medellín's main economic products are steel, textiles, confections, food and beverage, agriculture (from its rural area), public services, chemical products, pharmaceuticals, refined oil, and flowers. Fashion is a major part of the economy and culture of the city.
In February 2013, Medellín was chosen as the most innovative city in the world due to its recent advances in politics, education and social development.