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Moreno Partido

A partido, or administrative county, in Buenos Aires Province, Argentina, forming part of the Gran Buenos Aires urban agglomeration.

Last updated August 25, 2026

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Overview

Moreno Partido is an administrative district in Buenos Aires Province, Argentina, located within the metropolitan area of Gran Buenos Aires. Its administrative seat is the city of Moreno, and the partido also includes La Reja, Francisco Álvarez, Cuartel V, Trujui, and Paso del Rey. The district covers approximately 186 square kilometres and is named after Mariano Moreno, an Argentine lawyer, journalist, and political figure associated with the country’s early independence period. Moreno’s development is closely linked to the outward expansion of the Buenos Aires metropolitan area. Its population increased substantially during the second half of the twentieth century, rising from 114,041 inhabitants in 1970 to 194,440 in 1980, 287,295 in 1991, and 380,503 in 2001. The 2010 national census recorded 462,242 residents. This growth reflects suburbanization, housing expansion, and the integration of formerly semi-rural areas into the wider metropolitan economy. The district also experienced Chinese immigration during the early twenty-first century, as part of a broader migration trend visible across Argentina. Transport has played a major role in Moreno’s urban evolution. The district is connected with the city of Buenos Aires by the Sarmiento railway, whose Moreno station serves as the western terminus of the line and connects passengers toward Once station in the capital. In 2007, Moreno renewed and modernized its central bus and railway interchange using an architectural plan originating in the 1980s. Associated changes to traffic circulation led several streets in Moreno Centro to be converted from two-way to one-way operation during the early twenty-first century. Moreno also has cultural and scientific institutions of regional significance. The Francisco Javier Muñiz Natural History Museum was inaugurated in 1999 and commemorates the Argentine physician and naturalist regarded as the country’s first paleontologist. The area historically associated with Moreno and the neighboring Luján region was connected with some of Muñiz’s most important fossil discoveries. Today, Moreno Partido functions primarily as a residential and metropolitan municipality, with public administration, transportation, local commerce, education, and community services forming the core of its civic and economic life.

History

Moreno Partido is one of the partidos of Buenos Aires Province and forms part of the continuous urban and suburban system known as Gran Buenos Aires. Its name honors Mariano Moreno, a prominent figure in the political and intellectual life of the early Argentine nation. The district’s institutional history is therefore connected both to the territorial administration of Buenos Aires Province and to the gradual metropolitan expansion westward from the national capital. During the latter part of the twentieth century, Moreno changed from a relatively peripheral area into a densely populated metropolitan district. Census figures show sustained growth across each recorded period: the population increased from 114,041 in 1970 to 194,440 in 1980, then to 287,295 in 1991 and 380,503 in 2001. By the 2010 census conducted by Argentina’s national statistics system, the partido had 462,242 inhabitants. This expansion was driven by the spread of residential settlements, improved metropolitan links, and the incorporation of localities into the broader labor and service economy of Buenos Aires. The district’s population growth continued alongside broader demographic changes in Argentina. During the first years of the twenty-first century, Moreno received Chinese immigrants as part of a nationwide migration movement. This added to the social and commercial diversity of the partido, although the available reference material does not provide a detailed breakdown of the community’s size, settlement patterns, or economic activities. Railway infrastructure has been central to Moreno’s relationship with Buenos Aires. The Sarmiento railway connects the district with the capital, running from Moreno station at the western end of the line toward Once station in Buenos Aires. The railway, together with bus services, supports commuting and reinforces Moreno’s role as part of the capital’s metropolitan hinterland. In 2007, the central bus and railway station area underwent a renewal based on an architectural scheme developed in the 1980s. The redevelopment coincided with changes to the circulation pattern in Moreno Centro, including the conversion of several streets from two-way to one-way traffic. Moreno’s civic and cultural identity is also represented by the Francisco Javier Muñiz Natural History Museum. Opened in 1999, the museum commemorates Francisco Javier Muñiz, who is widely regarded as Argentina’s first paleontologist. The neighboring Luján area, portions of which were historically associated with the territory of Moreno, was the scene of some of Muñiz’s most important paleontological discoveries. The museum provides a local institutional link to that scientific heritage. The partido contains six principal localities: Moreno, which serves as the administrative capital; La Reja; Francisco Álvarez; Cuartel V; Trujui; and Paso del Rey. Together they form a varied metropolitan territory of approximately 186 square kilometres. Moreno today is an active local government district rather than a commercial brand, with its public identity expressed through municipal administration, its towns and neighborhoods, transport network, cultural facilities, and connection to the wider Buenos Aires urban region.

  • 2010

    Population reaches 462,242

    [1]

    The national census recorded 462,242 inhabitants, making this the latest population figure cited in the reference material.

  • 2007

    Central transport interchange renewed

    [1]

    The central bus and railway station area was renewed using an architectural plan dating from the 1980s, accompanied by changes to street traffic patterns in Moreno Centro.

  • 2001

    Population reaches 380,503

    [1]

    The district recorded 380,503 residents in the 2001 census, continuing its long-term population expansion.

  • 1999

    Francisco Javier Muñiz Natural History Museum inaugurated

    [1]

    Moreno opened the Francisco Javier Muñiz Natural History Museum, named for the Argentine naturalist and paleontologist.

  • 1991

    Population reaches 287,295

    [1]

    The 1991 population count recorded 287,295 inhabitants in Moreno Partido.

  • 1980

    Population rises to 194,440

    [1]

    The district’s population increased to 194,440, reflecting continuing metropolitan growth west of Buenos Aires.

  • 1970

    Population reaches 114,041

    [1]

    The population recorded for Moreno Partido at the beginning of the documented demographic series was 114,041 residents.

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