In 2020, the total population of Mexico City reached 9.2 million and a population density of 6,163.3 residents by square kilometer. Population density has grown considerably in the country's capital during the past few decades, as it stood at 5,494 inhabitants per square meter in 1990.

Mexico City ranked as the most densely populated city in Mexico as of 2023. The capital recorded 8,657 inhabitants per square kilometer. Xalapa and Acapulco followed with 7,150 and 5,750 inhabitants per square kilometer, respectively.

The Global Human Footprint dataset of the Last of the Wild Project, version 2, 2005 (LWPv2) is the Human Influence Index (HII) normalized by biome and realm. The HII is a global dataset of 1 km grid cells, created from nine global data layers covering human population pressure (population density), human land use and infraestructure (built-up areas, nighttime lights, land use/land cover) and human access (coastlines, roads, navigable rivers).The Human Footprint Index (HF) map, expresses as a percentage the relative human influence in each terrestrial biome. HF values from 0 to 100. A value of zero represents the least influence -the "most wild" part of the biome with value of 100 representing the most influence (least wild) part of the biome.

In 2020, students and housekeepers made up for over 70 percent of economically inactive population in Mexico City. People with a mental or physical disability preventing them from working represented 2.8 percent of non-working population.

From the year 2015 to 2020, there has been an increase in the population density in the Mexican city of Monterrey starting with 3,414.5 inhabitants per square kilometer and ending with 2020 with 3523.3 inhabitants, an 108.8 increase.

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

This bar chart displays median age (year) by capital city using the aggregation average, weighted by population in Mexico. The data is about countries per year.

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.

This bar chart displays individuals using the Internet (% of population) by capital city using the aggregation average, weighted by population in Mexico. The data is about countries per year.

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.

From the year 2015 to 2020 there has been an increase in the population density in Guadalajara, Mexico. During the last year, the city had around 9,658 inhabitants per square meter, while five years prior the density was lower than 9,180 inhabitants.

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.

From the year 1995 to 2020, there has been an overall increase in the number of people that speaks an indigenous language in the Mexican city of Monterrey. The highest amount of indigenous language speakers was in the year 2010 with 11,380 speakers. In the contrast the lowest number registered was in the year 1995 with 3,360 people.

Through the time period displayed in the Mexican state of Guadalajara there has been a decrease in the population since the year 2000 which registered about 1.63 million people until the last population count conducted in 2020 resulted in 1.38 million people, almost 300 thousand people less.

From the year 1994 to 2023, there has been an overall decrease in the number of newborns in the Mexican city of Monterrey. The highest amount was recorded in 2000 with 27,870 births. While the lowest amount recorded was in 2020 with 13,050.

In the Mexican city of Monterrey, the most common reason for migration was for family purposes with 8.65 thousand people sharing this background. Followed by labor reasons with 3.82 thousand people and housing purposes with 2.29 thousand people.

As of 2023, the top five most densely populated cities in Latin America and the Caribbean were in Colombia. The capital, Bogotá, ranked first with over 18,241 inhabitants per square kilometer.

In 2022, about 40 percent of adults in Mexico held a net worth under 10,000 U.S. dollars. In contrast, merely 393,000 Mexicans (that is, 0.4 percent of the total) had a net worth of over one million U.S. dollars. Mexico is one of the most unequal countries in Latin America regarding wealth distribution, with 78.7 percent of the national wealth held by the richest ten percent of the population.

The minimum salaryThe minimum wage per day guaranteed by law in Mexico was decreed to increase by 22 percent between 2021 and 2022, reaching 172.87 Mexican pesos in 2022. In the Free Zone located near the northern border the minimum daily wage was raised to 260.34 Mexican pesos.This represented the fourth consecutive incrase since 2019, but could prove to be insufficient to maintain the wellbeing of Mexican workers after the soaring inflation rate registered in 2022 and the economic impact of the COVID-19 in Mexican households. The legal minimum salary has a long history in the North American country, it was first implemented with the approval of the Political Constitution of the United Mexican States in 1917. Income inequality in Latin AmericaLatin America, as other developing regions in the world, generally records high rates of inequality, with a Gini coefficient ranging between 38 and 54 among the region’s countries. Moreover, many of the countries with the biggest inequality in income distribution worldwide are found in Latin America. According to the Human Development Report 2019, wealth redistribution by means of tax transfers improves Latin America's Gini coefficient to a lesser degree than it does in advanced economies. Wider access to education and health services, on the other hand, have been proven to have a greater direct effect in improving Gini coefficient measurements in the region.

The male-female ratio in Mexico City increased by 1.4 men per 100 women (+1.55 percent) in 2020 in comparison to the previous observation. In total, the ratio amounted to 91.67 men per 100 women in 2020. This increase was preceded by a declining ratio. Over the observed period, the ratio has been subject to fluctuation.For more insights about the male-female ratio consider different countries: In 2020, in comparison to Mexico City, the ratio in Tlaxcala as well as in Quintana Roo was higher.

Through the time period displayed in the Mexican city of Guadalajara there has been an overall decrease in the average number of people per household starting in the year 2000 with 4.4 inhabitants until the last report conducted in 2020 resulting in a 3.5 inhabitant average, with a 0.9 decrease.