The history of Tumaco, often referred to as the "Pearl of the Pacific," is rooted in deep antiquity. Long before the arrival of Europeans, these lands were inhabited by representatives of the unique Tumaco-La Tolita culture, which flourished approximately from the 6th century BC to the 2nd century AD. This civilization left a rich legacy in the form of skilled pottery and precious metalwork, which are still found in the region today.
Two key dates are associated with the founding of the city. According to one version, the first settlement on this site was established in 1570 by an indigenous chief named Tumas, in whose honour the city is believed to have been named. The official year of foundation is considered to be 1640, when the city received its full name — San Andrés de Tumaco.
The city owes much of its development to its strategic geographical location. Situated on an island in a bay on the Pacific coast of Colombia, near the border with Ecuador, Tumaco quickly transformed into an important seaport. This contributed to its emergence as a key trading hub in the region, through which the export of valuable resources was conducted.
During the colonial period and later, Tumaco's economy was closely linked to exports. Goods such as rubber and cinchona bark were shipped from here. Subsequently, logging and fishing became important industries. The cultural character of the city was shaped by the influence of the Afro-Colombian population — descendants of people brought to work on plantations and in mines. This heritage is vividly manifested today in local music, cuisine, and traditions.