In 2025, approximately 23 million people lived in the São Paulo metropolitan area, making it the biggest in Latin America and the Caribbean and the sixth most populated in the world. The homonymous state of São Paulo was also the most populous federal entity in the country. The second place for the region was Mexico City with 22.75 million inhabitants. Brazil's cities Brazil is home to two large metropolises, only counting the population within the city limits, São Paulo had approximately 11.45 million inhabitants, and Rio de Janeiro around 6.21 million inhabitants. It also contains a number of smaller, but well known cities such as Brasília, Salvador, Belo Horizonte and many others, which report between 2 and 3 million inhabitants each. As a result, the country's population is primarily urban, with nearly 88 percent of inhabitants living in cities. Mexico City Mexico City's metropolitan area ranks sevenths in the ranking of most populated cities in the world. Founded over the Aztec city of Tenochtitlan in 1521 after the Spanish conquest as the capital of the Viceroyalty of New Spain, the city still stands as one of the most important in Latin America. Nevertheless, the preeminent economic, political, and cultural position of Mexico City has not prevented the metropolis from suffering the problems affecting the rest of the country, namely, inequality and violence. Only in 2023, the city registered a crime incidence of 52,723 reported cases for every 100,000 inhabitants and around 24 percent of the population lived under the poverty line.

In 2020, population of Mexico City reached 9.2 million, accounting for around seven percent of the total Mexican population. Over the timespan of 30 years, the number of inhabitants in the country's capital grew approximately by 974,000 persons.

Number of Immigrants: Ciudad de Mexico data was reported at 47.305 Person th in 2015. This records a decrease from the previous number of 50.735 Person th for 2010. Number of Immigrants: Ciudad de Mexico data is updated yearly, averaging 42.714 Person th from Dec 1975 (Median) to 2015, with 9 observations. The data reached an all-time high of 51.408 Person th in 1980 and a record low of 28.303 Person th in 1975. Number of Immigrants: Ciudad de Mexico data remains active status in CEIC and is reported by National Population Council. The data is categorized under Global Database’s Mexico – Table MX.G008: Number of Immigrants.

Number of Emigrants: Ciudad de Mexico data was reported at 53.883 Person th in 2015. This records a decrease from the previous number of 83.006 Person th for 2010. Number of Emigrants: Ciudad de Mexico data is updated yearly, averaging 53.883 Person th from Dec 1975 (Median) to 2015, with 9 observations. The data reached an all-time high of 151.896 Person th in 2000 and a record low of 24.689 Person th in 1975. Number of Emigrants: Ciudad de Mexico data remains active status in CEIC and is reported by National Population Council. The data is categorized under Global Database’s Mexico – Table MX.G007: Number of Emigrants.

En México, la realización de los censos se remonta a la Época Prehispánica. Los primeros recuentos de personas de los que se tiene noticia, se realizaron en el año 1116 de nuestra era, durante la segunda migración de las tribus chichimecas llegadas al Valle de México. En aquel entonces, el rey Xólotl ordenó que fueran censados todos sus súbditos. Para contarlos, cada uno iba tirando una piedra en un montonal al que se llamó Nepohualco. El resultado de dicho Censo proporcionó la cifra de 3 millones 200 mil personas, según consta en códices y monumentos. Durante el Imperio Azteca, se realizaron registros de provincias y pueblos para controlar el pago de tributos. Siglos después, durante la Colonia (siglo XVII), se levantaron dos censos de población (1614 y 1625) y cinco recuentos demográficos (1654, 1662, 1664, 1665 y 1667). Sin embargo, no se han conservado los datos obtenidos en estos eventos, pues la información se consideraba secreto de estado. No obstante, se supone que esos recuentos fueron incompletos y rudimentarios.

De esa misma época, data un documento elaborado en el siglo XVI por los frailes evangelizadores, denominado Suma de Visitas de Pueblos por Orden Alfabético, sin embargo, es hasta fines del siglo XVIII cuando se levantó un censo de población propiamente dicho: el de Revillagigedo (realizado entre 1790 y 1791), del que se conservan 40 volúmenes en el Archivo General de la Nación.

En el México Independiente, destacan por su importancia: el trabajo realizado por Don Antonio de Valdés en 1831, conocido como el Censo de Valdés; la Estadística General de la República, trabajo realizado por Don José María Pérez Hernández y los trabajos de García Cubas y Lucas Alamán.

En 1882 se creó la Dirección General de Estadística, y expidió su reglamento en 1883, en el cual se estableció que esta Dirección deberá levantar un censo general de los habitantes del país cada diez años. En 1892 se realizó en la Ciudad de México el censo piloto de población, conocido como Censo Peñafiel. Con la experiencia de ese censo se adicionaron algunas preguntas, se suprimieron otras y quedó lista la base para realizar el primer esfuerzo estadístico de carácter nacional en 1895.

De ese año en adelante se ha dispuesto de manera regular de información estadística sistemática, que ha facilitado el conocimiento de las condiciones de vida de la población mexicana. Con excepción de 1920, época de la Revolución Mexicana, se han efectuado los censos de población y vivienda cada 10 años, habiéndose levantado 12 a la fecha.

Chart and table of population level and growth rate for the Ciudad Victoria, Mexico metro area from 1950 to 2025.

The statistic depicts the ten largest cities in Mexico in 2020. In 2020, Mexico City had around 8.84 million residents which made it the largest city in Mexico.

Population of Mexico

Mexico is a federal republic located in North America, sharing borders with the United States to the north, and to the southeast with Guatemala and Belize. With a total area of over 1.9 million square kilometers, it is the fourteenth largest nation in the world and the fifth largest in the Americas.

In 2014, Mexico’s total population amounted to approximately 120 million people. A little under two thirds of Mexico’s total population is of Mestizo ethnicity. The total population has steadily grown over the past decade, despite being the source to the largest migration flow between countries in the world; in 2010, around 11.6 million immigrants from Mexico lived in the United States. The migration flow between the United States and Mexico has however, decreased over the past ten years: Between 1995 and 2000, over 2.9 million migrants emigrated from Mexico to the United States. This was more than the double of migrants who emigrated from Mexico to the United States between 2005 and 2010. Each year, Mexico's population grows by about 1.24 percent compared to the previous year. Mexico City, the country’s capital and largest city, is home to approximately 8.6 million people.

In 2020, the majority of the population of Ciudad Juarez by group age were between the age groups from 5 to 29 years of age. The highest amount of habitants was registered in the group age from 10 to 14 years ***** thousand females and ***** thousand men.

In 2020, only **** percent of the population in Ciudad Juarez was considered non-vulnerable due to poverty conditions. While the other **** percent lived under poverty conditions or on the verge of them.

Mexico City’s leading talk and news radio station in the first half of 2020 was W Radio ****, with ****** thousand listeners in the area. Ranked second was Radio Uno ***** with ***** thousand listeners. In ********, more than ** percent of the population of Mexico City aged eight or older consumed radio content on workdays (Monday to Friday); the same was true for ** percent of the population on the weekends.