Mexico >> Mexican States >> Sonora
Sonora Population Overview
Sonora (Spanish: Estado Libre y Soberano de Sonora) is one of the 32 federal entities of Mexico. It is located in northwestern Mexico and is bordered by Chihuahua to the east, Baja California to the northwest, Sinaloa to the south, and the U.S. state of Arizona to the north.
Sonora is the 18th most populated state in Mexico and the 2nd largest by area. According to the Censo de Población y Vivienda 2020, the population of Sonora in 2020 was 2,944,840 (2.94 million), representing about 2.3% of the country’s total population. The state recorded a population growth rate of 10.61% between 2010 and 2020.
Projected population of Sonora in 2026 is estimated to be around 3.2 million.
Sonora Population Statistics (Census 2020)
| Indicator | Data |
|---|---|
| Total Population | 2,944,840 (2.94 million) |
| Male Population | 1,472,197 |
| Female Population | 1,472,643 |
| Male–Female Ratio | 99.9 men per 100 women |
| Population Rank | 18th |
| Total Land Area | 179,355 km² (69,249 sq mi) |
| Area Rank | 2nd |
| Population Density | 16/km² (41.4/sq mi) |
| Life Expectancy | 75.4 years |
| Median Age | 30 years |
| Urban Population | 88% |
| Capital City | Hermosillo |
Source: Censo de Población y Vivienda 2020
Also read about: Mexico Population & Demography
Sonora Historical Population
Sonora recorded a population growth rate of 10.61% between 2010 and 2020. From 1910 to 1930, population growth in the state remained relatively slow due to economic and social challenges. However, from the 1940s onward, Sonora experienced steady and sustained growth, supported by agricultural expansion, industrial development, and cross-border trade with the United States.
Between 1950 and 1980, the population increased rapidly, reflecting strong migration and urbanization. Growth remained stable from 1990 to 2010, while the pace slightly slowed in the most recent decade, leading to moderate expansion by 2020.
Sonora Population by Census Year (1900–2020)
| Census Year | Population | Absolute Change | Percentage Change |
|---|---|---|---|
| 1900 | 221,682 | – | – |
| 1910 | 265,383 | +43,701 | +19.71% |
| 1921 | 275,127 | +9,744 | +3.67% |
| 1930 | 316,271 | +41,144 | +14.95% |
| 1940 | 364,176 | +47,905 | +15.15% |
| 1950 | 510,607 | +146,431 | +40.21% |
| 1960 | 783,378 | +272,771 | +53.42% |
| 1970 | 1,098,720 | +315,342 | +40.25% |
| 1980 | 1,513,731 | +415,011 | +37.77% |
| 1990 | 1,823,606 | +309,875 | +20.47% |
| 2000 | 2,216,969 | +393,363 | +21.57% |
| 2010 | 2,662,480 | +445,511 | +20.10% |
| 2020 | 2,944,840 | +282,360 | +10.61% |
Source: Censo de Población y Vivienda 2020
Largest Cities in Sonora (2020)
Sonora is home to several major urban centers that serve as important hubs for industry, trade, agriculture, and cross-border commerce. Hermosillo, the state capital, is the largest city and the main economic center. Ciudad Obregón and Nogales play key roles in manufacturing and international trade, while coastal cities such as Guaymas and Puerto Peñasco support tourism and port activities.
These cities contribute significantly to Sonora’s economic development and urban growth.
Top Cities in Sonora by Population
| Rank | City | Population |
|---|---|---|
| 1 | Hermosillo | 855,563 |
| 2 | Ciudad Obregón | 329,404 |
| 3 | Nogales | 261,137 |
| 4 | San Luis Río Colorado | 176,685 |
| 5 | Navojoa | 120,926 |
| 6 | Guaymas | 117,253 |
| 7 | Agua Prieta | 91,029 |
| 8 | Caborca | 67,604 |
| 9 | Puerto Peñasco | 62,301 |
| 10 | Miguel Alemán (La Doce) | 39,474 |
Source: Censo de Población y Vivienda 2020
Also read about: Top Cities in Mexico by Population
Religion in Sonora
Christianity is the dominant religion in Sonora, with Roman Catholicism remaining the largest faith followed by Protestant and Evangelical Christian groups. In recent years, the share of people reporting no religious affiliation has increased, reflecting changing social and cultural trends. Smaller communities practice other and unaffiliated religions across the state.
Religious Composition in Sonora
| Religion | Percentage |
|---|---|
| Catholic | 76.5% |
| Protestant / Evangelical Christian | 11.2% |
| No Religion | 11.5% |
| Unaffiliated Religion | 0.5% |
| Other Religions | 0.1% |
Source: Censo de Población y Vivienda 2020
Also read about: Religion in Mexico
Indigenous Languages in Sonora (2020)
Sonora has a significant Indigenous-speaking population, with 62,808 residents aged three and above reporting that they speak an indigenous language. The most widely spoken languages belong mainly to the Mayo and Yaqui communities, which have a strong historical and cultural presence in the state. Smaller groups continue to preserve other native languages such as Mixteco and Zapoteco.
Major Indigenous Languages in Sonora
| Indigenous Language | Number of Speakers |
|---|---|
| Mayo | 26,588 |
| Yaqui | 18,239 |
| Mixteco | 2,518 |
| Zapoteco | 2,309 |
Source: Censo de Población y Vivienda 2020
Also read about: Race and Ethnicity in Mexico
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