The history of Mixco is closely intertwined with the pre-Columbian era and the Spanish conquest of Guatemala. The modern city, which today is one of the largest in the country and part of the capital's metropolitan area, has its roots in the dramatic events of the 16th century involving the Poqomam Maya people.
The emergence of modern Mixco is directly linked to the conquest of the Poqomam capital, known as Mixco Viejo (Chinautla Viejo). In 1525, troops led by the conquistador Pedro de Alvarado captured this powerful fortress after a lengthy siege. The surviving residents were relocated by the Spanish to a new site, closer to the new capital they had founded. Thus, in 1526, the colonial settlement of Santo Domingo de Mixco was established, marking the beginning of the modern city.
Mixco's development was determined from the start by its strategic position. Its proximity to Guatemala City, the capital of the Captaincy General, facilitated rapid integration into the economic life of the colony. Mixco became an important supplier of agricultural products for the capital market, a role it still performs today. Additionally, the city was organized as a Spanish "reducción"—a settlement for the indigenous population intended for control, assimilation, and conversion to Christianity.
Thus, the early culture of Mixco was a synthesis of Poqomam traditions and Spanish Catholic influence, which manifested in local festivals, religious rites, and art. Economically, the city was entirely dependent on the capital, serving as its agrarian and raw material appendage. Over time, due to its location, Mixco transformed into a densely populated urban center while retaining echoes of its rich historical past.