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.

The statistic depicts the total population of Mexico from 2020 to 2024, with projections up until 2030. In 2020, Mexico's total population amounted to about 128.21 million people. Total population of Mexico The total population of Mexico was expected to reach 116.02 million people by the end of 2013. Despite being the source of one of the largest migration flows in the world, Mexico has managed to maintain around a 1.25 percent population growth rate for the last several years, roughly the same growth rate as India. Among the largest cities in Mexico, Mexico City is leading with more than 8.5 million inhabitants. A slowly declining fertility rate still holds above the replacement rate, and life expectancy is growing, expanding the population from both ends of the age spectrum. With the rising life expectancy, the median age of Mexican residents has also increased, and an increasing stream of immigrants from the financially-troubled Spain has also boosted population numbers. The majority of the Mexican population is Roman Catholic, owing to its colonial Spanish background. Spanish is the predominant language, with several regional and local dialects spoken, but a number of indigenous languages, such as Nahuatl, survive and are also spoken around Mexico. One worrying and relatively recent trend in Mexico is the growing share of the population becoming overweight or obese. It is not entirely clear what sort of effect the obesity epidemic is going to have on Mexican population numbers in the long run, but is starting to manifest itself not just in physical appearance, but in the increased rates of heart disease, hypertension, and diabetes. In fact, diabetes was one of the top causes of deaths for Mexicans in recent years.

Population in largest city in Mexico was reported at 22505315 in 2024, according to the World Bank collection of development indicators, compiled from officially recognized sources. Mexico - Population in largest city - actual values, historical data, forecasts and projections were sourced from the World Bank on July of 2025.

Population in the largest city (% of urban population) in Mexico was reported at 21.01 % in 2024, according to the World Bank collection of development indicators, compiled from officially recognized sources. Mexico - Population in the largest city - actual values, historical data, forecasts and projections were sourced from the World Bank on July of 2025.

In 2024, the perception of insecurity in Mexico City stood at approximately 47.49 percent. Between 2011 and 2024, the figure dropped by around 1.09 percentage points, though the decline followed an uneven course rather than a steady trajectory.

Population, female (% of total population) in Mexico was reported at 51.51 % in 2024, according to the World Bank collection of development indicators, compiled from officially recognized sources. Mexico - Population, female (% of total) - actual values, historical data, forecasts and projections were sourced from the World Bank on July of 2025.

This statistic displays a timeline of the annual average population in Mexico in the mid-year 2015, as well as a forecast until 2055. It is estimated that the average population of Mexico will exceed 146 million people by 2055, up from 122 million in 2015.

A dataset listing New Mexico cities by population for 2024.

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

As of 2025, Tokyo-Yokohama in Japan was the largest world urban agglomeration, with 37 million people living there. Delhi ranked second with more than 34 million, with Shanghai in third with more than 30 million inhabitants.

Historical chart and dataset showing Mexico birth rate by year from 1950 to 2025.

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

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

As of January 2025, the province of Buenos Aires registered the highest number of inhabitants, with over 17.8 million. Córdoba and Santa Fe followed far behind with 3.91 and 3.58 million, respectively. The city of Buenos Aires ranked as the third most populated metropolitan area of Latin America, only behind São Paulo and Mexico City.

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

In 2020, Mexico had a Muslim population of 7,982 people. Mexico City, with 1,636, was the state with the biggest Muslim community in the country. Mexico State was the only other federal entity with more than 1,000 Muslims.

Chart and table of population level and growth rate for the Leon de los Aldamas, Mexico metro area from 1950 to 2025.

Chart and table of population level and growth rate for the Toluca de Lerdo, Mexico metro area from 1950 to 2025.

Chart and table of population level and growth rate for the Oaxaca de Juarez, Mexico metro area from 1950 to 2025.

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