As of February 2025, El Salvador had the highest prisoner rate worldwide, with over 1,600 prisoners per 100,000 of the national population. Cuba, Rwanda, Turkmenistan, and the United States, rounded out the top five countries with the highest rate of incarceration. Homicides in El Salvador Interestingly, El Salvador, which long had the highest global homicide rates, has dropped out of the top 20 after a high number of gang members have been incarcerated. A high number of the countries with the highest homicide rate are located in Latin America. Prisoners in the United StatesThe United States is home to the largest number of prisoners worldwide. More than 1.8 million people were incarcerated in the U.S. at the beginning of 2025. In China, the estimated prison population totaled 1.69 million people that year. Other nations had far fewer prisoners. The largest share of the U.S. prisoners in federal correctional facilities were of African-American origin. As of 2020, there were 345,500 black, non-Hispanic prisoners, compared to 327,300 white, non-Hispanic inmates. The U.S. states with the largest number of prisoners in 2022 were Texas, California, and Florida. Over 160,000 prisoners in state facilities were sentenced for rape or sexual assault, which was the most common cause of imprisonment. The second most common was murder, followed by aggravated or simple assault.

At the beginning of 2025, the United States had the highest number of incarcerated individuals worldwide, with around 1.8 million people in prison. China followed with around 100,000 fewer prisoners. Brazil followed in third. The incarceration problem in the U.S. The United States has an incredibly high number of incarcerated individuals. Therefore, the incarceration problem has become a widely contested issue, because it impacts disadvantaged people and minorities the most. Additionally, the prison system has become capitalized by outside corporations that fund prisons, but there is still a high cost to taxpayers. Furthermore, there has been an increase in the amount of private prisons that have been created. For-profit prison companies have come under scrutiny because of their lack of satisfactory staff and widespread lobbying. Violent offenses are the most common type of offense among prisoners in the U.S. Incarceration rates worldwide El Salvador had the highest rate of incarceration worldwide, at 1,659 prisoners per 100,000 residents as of February 2025. Cuba followed in second with 794 prisoners per 100,000 inhabitants. The incarceration rate is a better measure to use when comparing countries than the total prison populations, which will naturally have the most populous countries topping the list.

In 2023 Turkey had the highest incarceration rate among European countries, at 408 prisoners per 100,000 inhabitants, followed by Georgia, which had an incarceration of 256. The country with the lowest incarceration rate in this year was Liechtenstein, which had 15 people in prison for every 100,000 inhabitants. Germany had one of the lowest rates of 69 when compared with other major European countries such as France and England & Wales, which had rates of 106 and 136 respectively. The Russian Federation has in previous years been the country with the highest incarceration rate in the Council of Europe's data, however, as the country was removed as a member of the council in 2022 due to their invasion of Ukraine, data for Russia is no longer available.

With approximately 1.7 million prisoners, China had by far the biggest prison population across the Asia-Pacific region in 2022. In contrast, less than one thousand people were incarcerated in Brunei and Timor-Leste, respectively.

Prison populations and total populations

The varying size of prison populations throughout Asia-Pacific can be attributed to the size of the general populations across the region's countries and territories. With a population of over 1.4 billion, China is the most populous country in the world. Despite the disparity in population size, Bhutan, which had one of the smallest prison populations in APAC in 2022, had a higher serious assault rate than other Asia-Pacific counties.

Crime rates

Apart from the general population size, there are other factors which can be taken into consideration, such as a diversity in justice systems. Therefore, a comparison of crime throughout the region can be challenging. Although China had a higher prison population, it had a lower intentional homicide rate compared to other Asia-Pacific countries and territories. New Zealand, Singapore, and Hong Kong have the lowest corruption index scores in the region, whereas countries including Bangladesh, Cambodia, and North Korea have recorded the highest scores.

In 2025, there were around 576 prisoners per one hundred thousand of the population in Turkmenistan. In contrast, there were about 33 prisoners per one hundred thousand of the population in Japan that year.

Hong Kong had the largest share of female prisoners as of October 2023, with nearly 20 percent of its detainees being women. Macau had the second highest rate at over 15 percent. In the United States, 10 percent of inmates were women.

As of November 2023, Monaco had the largest share of foreign prisoners with 93 percent of its detainees being foreigners. United Arab Emirates was ranked second, with almost 88 percent of foreign prisoners.

The South American nation with the highest prison population rate in 2024 was Uruguay, with 449 prisoners per 100,000 inhabitants, followed by Brazil, with 389 prisoners. The country in South America with the lowest prison population rate was Ecuador, with 179 per 100,000 persons.

The Latin America and Caribbean nation with the highest prison population rate in 2024 was El Salvador, with 1.086 prisoners per 100,000 inhabitants, the only country to achieve four digits, followed by Cuba with 794 prisoners. Guatemala and Haiti Jamaica had the lowest prison population rates, 123 and 63 per 100,000 inhabitants, respectively.

As of December 2022, there was a total of 139,631 prisoners in the state of Texas, the most out of any state. California, Florida, Georgia, and Ohio rounded out the top five states with the most prisoners in the United States.

The United States had the highest rate of prisoners per 100,000 inhabitants of the G7 countries between 2010 and 2021. In 2021, there were more than 520 prisoners per 100,000 inhabitants in the country. By comparison, the United Kingdom, who had the second highest prisoner rate, had less than 108 prisoners per 100,000 inhabitants. Japan had the lowest rate at 36.

The Central American nation with the highest prison population rate was El Salvador, with over 1,000 prisoners per 100,000 inhabitants, followed by Panama with 522 prisoners. The lowest prison population rate of the region was found in Guatemala, with 123 prisoners per 100,000 people.

Cuba is one of the Caribbean nations with the highest prison population rate as of August 2024. According to the latest data available at that time, there were 794 prisoners per 100,000 inhabitants on this island, followed by the Bahamas, with 409 prisoners per 100,000 population. In some Caribbean countries, over 10 percent of the prison population were foreign nationals.

There were about 87,784 female prisoners under the jurisdiction of state or federal correctional authorities in the United States as of December 2022. This is an increase from the previous year, when there were 83,651 female prisoners in the country.

Mexico had nearly 233,300 prisoners as of December 2023, around 7,200 prisoners more than the prior year. The volume of imprisoned people in the country followed an increasing trend from 2018 to 2023. Prison population That figure places Mexico among the countries with the largest number of prisoners in the world. However, when taking into account incarceration rates, that is, the number of prisoners per 100,000 inhabitants, Mexico falls out of the ranking and is, actually, one of the Latin American and Caribbean countries with the lowest rates, exceeded by far by countries like El Salvador and Cuba, which register four times the prison population rate of Mexico.People aged 30 to 39 years made up for the largest share of prisoners in Mexico. However, the share of people deprived of liberty whose age ranged from 18 to 29 years was significantly largest in the case of women, with 32.1 percent of female prisoners pertaining to such age group, while in the case of men it fell to 25.1 percent. Regarding female inmates, approximately a tenth have been pregnant while being in jail. Furthermore, theft was the most commonly committed crime by women in Mexican states' penitentiary centers in 2022, followed by kidnapping and homicide. Preventive prison The main reason for the rapid growth of prison population in Mexico in recent years is the 2019 reform of the article 19 of the Constitution, which has led to the spread of pretrial detention. Pretrial detention is a measure that leads to the imprisonment of people automatically while they are still being investigated, without having been sentenced, and can last up to two years. The reform allowed for automatic preventive imprisonment for a wider range of crimes than before, with the new list including fuel theft (huachicoleo) and burglary, among others. This affects particularly vulnerable people from poor backgrounds, with low education and who commit petty crimes. As of December 2020, 78.6 percent of pre-trial detainees for robbery in Mexico had not been sentenced, which means that less than a fourth of people in jail for robbery had been found guilty in court. The country had an even higher share of unsentenced prisoners for drug trafficking, with 87.8 percent of people being in preventive detention without charge.. One of the reasons behind the high share of prisoners awaiting sentence is the large number of simultaneous cases that public defenders have to attend to. Depending on the Mexican state in which someone is being prosecuted, a public defender can have up to an average of 336.9 simultaneous cases to defend.

Haiti had a 302 percent prison occupancy rate in 2024, being the country with the most overcrowded prison system in the Caribbean. Grenada followed at a 266.7 percent. Barbados had the lowest rate, at 61.5 percent. On the other hand, Cuba was the country with the highest prison population rate in the Caribbean and Haiti with the lowest as of 2022.

In 2024, Haiti had a 302 percent level of occupancy in their prison system, being the country with the highest occupancy rate in the Latin America and the Caribbean. It was followed by Guatemala, with almost 300 percent occupancy rate. Among the top ten countries with the most overcrowded national prison system, Panama had the lowest rate, at 163.1 percent. Regarding prison population, El Salvador and Cuba were the Latin American and Caribbean countries that had the largest rates, both with over 500 prisoners per 100,000 inhabitants.

As of October 2024, the operational capacity of Italian prisons was about 51,100 inmates. However, there were roughly 62,100 prisoners incarcerated in all Italian penal institutions, over 11,000 more than the regulatory capacity. Indeed, most Italian regions were affected by the overpopulation of jails. Prison population in Italy Since the beginning of the twenty-first century, the number of inmates in Italian jails remained rather stable. In the period between 2000 and 2019, the lowest prison population was registered in 2006, whereas the highest number of inmates in custody was reported in 2010. However, the number of detainees in 2020 experienced a decrease. During the coronavirus emergency, certain prisoners were released under supervision in order to reduce overcrowding. Perception of prison overpopulation Italians are aware that the number of inmates in the country’s prisons exceeds the operational capacity. However, in 2018 Italian respondents believed that the penal institutions in their country were more overcrowded than they actually were.

The incarceration rate in Germany was 71 per 100 thousand people in 2021 compared with 90.9 in 2008. Throughout the provided time period the incarceration rate has declined in most years, although it rose from 87.6 in 2010 to 88.4 in 2011. Compared with other countries in Europe there were several other countries with higher incarceration rates, including England & Wales and France.

In 2021, the prison population rate in Singapore was 173.45 prisoners per 100,000 population, a decrease from the previous year. Singapore's prison population rate has been decreasing over the years, as the country focused more on rehabilitation instead of incarceration for drug abuse crimes.

Prison demographics As of 2022, the number of inmates admitted to prison in Singapore was approximately less than half that of 10 years ago, standing at less than six thousand. Of those, approximately three-quarters that made up the inmate population were admitted due to drug offenses. Recent figures also show that the country’s 13 prison facilities detain more than 12 thousand prisoners with a density of around 80 percent. Some do not have to spend their sentences fully in a prison though. Those who were deemed suitable for community-based programs are eligible to serve the last stage of their sentences in the community, albeit with restrictions.

Rehabilitation to prevent re-offending

Singapore’s focus on rehabilitation and reintegration of the convicted has shown results, as the recidivism rate, the percentage of inmates repeating offense within two years, was said to be at an all-time low. However, among juveniles, the probation recidivism rate seems to be on the rise. Even so, the current system to maintain law and order seem to be working. Singapore is known as one of the safest cities worldwide, and this messaging seems to be taken seriously as the city-state continuously increases its number of crime-free days every year.