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.

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 June of 2025.

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.

A dataset listing New Mexico cities by population for 2024.

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 June of 2025.

The services sector employed the largest share of workers in Mexico City as of the second quarter of 2024, with 64.93 percent. The commerce industry ranked second, with about 20 percent of employed population in the country's capital working in this sector.

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

The state of Mexico is the most populated region in Mexico, being home to around 13.44 percent of the country's total population. In 2022, approximately 17.32 million people lived in the state of Mexico, whereas 9.3 million resided in the country's capital, Mexico City. The state with the lowest number of inhabitants was Colima, with around 770,900 residents.

During the last census, Iztapalapa registered a total of 1.8 million inhabitants, a population higher than the eight States with the lowest population in Mexico. Gustavo A. Madero and Álvaro Obregón ranked second and third, respectively. In contrast, Milpa Alta registered only 152,685 inhabitants.

Population, female (% of total population) in Mexico was reported at 51.5 % in 2023, 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 June of 2025.

Mexico urban population for 2023 was 104,796,621, a 1.1% increase from 2022.

<ul style='margin-top:20px;'>

<li>Mexico urban population for 2022 was <strong>103,660,854</strong>, a <strong>0.98% increase</strong> from 2021.</li>
<li>Mexico urban population for 2021 was <strong>102,651,435</strong>, a <strong>0.92% increase</strong> from 2020.</li>
<li>Mexico urban population for 2020 was <strong>101,719,689</strong>, a <strong>1.09% increase</strong> from 2019.</li>
</ul>Urban population refers to people living in urban areas as defined by national statistical offices. It is calculated using World Bank population estimates and urban ratios from the United Nations World Urbanization Prospects. Aggregation of urban and rural population may not add up to total population because of different country coverages.

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

This statistic shows the ten largest cities in Italy in 2025. In 2025, around 2.75 million people lived in Rome, making it the largest city in Italy. Population of Italy Italy has high population figures and a high population density in comparison to other European countries. A vast majority of Italians lives in urban areas and in the metropolises (as can be seen in this statistic), while other areas, such as the island Sardinia, are rather sparsely inhabited. After an increase a few years ago, Italy’s fertility rate, i.e. the average amount of children born to a woman of childbearing age, is now on a slow decline; however, it is still high enough to offset any significant effect the decrease might have on the country’s number of inhabitants. The median age of Italy’s population has been increasing rapidly over the past 50 years – which mirrors a lower mortality rate – and Italy is now among the countries with the highest life expectancy worldwide, only surpassed by two Asian countries, namely Japan and Hong Kong. Currently, the average life expectancy at birth in Italy is at about 83 years. Most of Italy’s population is of Roman Catholic faith. The country actually boasts one of the largest numbers of Catholics worldwide; other such countries include Brazil, Mexico and the United States. The central government of the Roman Catholic Church, the Holy See, is located in Vatican City in the heart of Italy’s capital and ruled by the Bishop of Rome, the Pope. Officially, Vatican City does not belong to Italy, but is a sovereign state with its own legislation and jurisdiction. It has about 600 inhabitants, who are almost exclusively members of the clergy or government officials.

The working poverty rate in Mexico, which refers to the percentage of the population with labor income below the cost of the food basket, rose to 35.4 percent in the fourth quarter of 2024. The share of the Mexican population at working poverty peaked in the third quarter of 2020, at 46 percent.

Mexico birth rate for 2025 is 15.81, a 1.62% decline from 2024.

<ul style='margin-top:20px;'>

<li>Mexico birth rate for 2024 was <strong>16.07</strong>, a <strong>1.59% decline</strong> from 2023.</li>
<li>Mexico birth rate for 2023 was <strong>16.33</strong>, a <strong>1.69% decline</strong> from 2022.</li>
<li>Mexico birth rate for 2022 was <strong>16.61</strong>, a <strong>1.67% decline</strong> from 2021.</li>
</ul>Crude birth rate indicates the number of live births occurring during the year, per 1,000 population estimated at midyear. Subtracting the crude death rate from the crude birth rate provides the rate of natural increase, which is equal to the rate of population change in the absence of migration.

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.

In 1800, the present-day region of Mexico had a population of just over six million people. Mexico gained its independence from the Spanish crown in 1821, and population growth remained steady for the next 85 years. Growth then halted with with the Panic of 1907, an American financial crisis whose ripple effects in Mexico would set the stage for the Mexican Revolution in 1910. This revolution would see population flatline at just over fifteen million between 1910 and 1920, as widespread conflict and result in the death of between 1.7 to 2.7 million over the decade, and the coinciding 1918 Spanish Flu epidemic would see the loss of another 300,000 in this time period. Following the end of both the Mexican Revolution and the Spanish Flu epidemic in 1920, the population of Mexico would begin to increase rapidly as modernization would see mortality rates fall and standards of living rise throughout the country. This growth has continued steadily into the 21st century, and in 2020, Mexico is estimated to have a population of just under 129 million.

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

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

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