It was before the XIX century in 1988 when the federal government awarded Guillermo Andrade large tracts of land in this part of the country, looking forward to colonize the border area with the United States. It happened in the agricultural valley where the development of Mexicali started with the establishment of companies dedicated to irrigation that were looking forward to benefit from the Rio Colorado water in the agricultural field, promoting the construction of irrigation channels; this happened between 1898 and 1900.
From the begging of last century, in the year 1900, Mexicali was an area practically unpopulated except for one or another human settlement such as Los Algodones, the Cucapá native community had hundredths, or perhaps even thousands of years living in this inhospitable region.
The word Mexicali is composed by the terms Mexico and California, this pronoun is said to have been imposed back in 1902 by the coronel Agustín Sanguinéz, back in the day, political chief of the northern district. In its first months, Mexicali was part of the municipality of Ensenada as a municipal area assigned to Los Algodones and then afterwards as a header section, nonetheless, the official endowment is considered to have taken place in March the 14th of 1903 with the appointment of Manuel Vizcarra as auxiliary judge.
It was November the 4th of 1914 when the, back then, Head Political Leader Baltazar Avilés decrees the municipality of Mexicali, calling also the elections to build the first City Council, that was headed by Francisco L. Montejano. From 1927 to 1930 the City Council of Mexicali was maintained as a council, and from 1930 to 1952 as a delegation, until Baja California was no longer a territory and became a the State 29th.
The Colorado River Company was dedicated to rent agricultural land to foreigners, mainlty from Chinese origin, Hindus and Japanese, since, strangely, Mexicans were just considered temporal workers. This unfair situation provoked in 1937 an agrarian conflict known as “Asalto a las Tierras” (Assult to the Lands). In 1953 another period started in Mexicali, when Baja California was transformed in a Federal entity and the free municipalities were organized.
The municipality is divided into 14 municipal delegations that serve as delegation head offices: Algodones, Benito Juárez, Progreso, González Ortega, Hechicera, Ciudad Morelos, Batáquez, Cerro Prieto, Venustiano Carranza, Colonias Nuevas, San Felipe, Hermosillo, Estación Delta y Cd. Guadalupe Victoria.