In 2025, Pietermaritzburg in South Africa ranked as the world's most dangerous city with a crime rate of 82 per 100,000 inhabitants. Five of the 10 cities with the highest crime rates worldwide are found in South Africa. The list does not include countries where war and conflict exist. South Africa dominates crime statistics When looking at crime rates, among the 10 most dangerous cities in the world, half of them are found in South Africa. The country is struggling with extremely high levels of inequality, and is struggling with high levels of crime and power outages, harming the country's economy and driving more people into unemployment and poverty. Crime in Latin America On the other hand, when looking at murder rates, Latin America dominates the list of the world's most dangerous countries. Violence in Latin America is caused in great part by drug trafficking, weapons trafficking, and gang wars.

In 2023, around 3,640.56 violent crimes per 100,000 residents were reported in Oakland, California. This made Oakland the most dangerous city in the United States in that year. Four categories of violent crimes were used: murder and non-negligent manslaughter; forcible rape; robbery; and aggravated assault. Only cities with a population of at least 200,000 were considered.

The average for 2017 based on 97 countries was 7.4 homicides per 100,000 people. The highest value was in El Salvador: 61.8 homicides per 100,000 people and the lowest value was in Japan: 0.2 homicides per 100,000 people. The indicator is available from 1990 to 2017. Below is a chart for all countries where data are available.

Turks and Caicos Islands saw a murder rate of ***** per 100,000 inhabitants, making it the most dangerous country for this kind of crime worldwide as of 2024. Interestingly, El Salvador, which long had the highest global homicide rates, has dropped out of the top 29 after a high number of gang members have been incarcerated. Meanwhile, Colima in Mexico was the most dangerous city for murders. Violent conflicts worldwide Notably, these figures do not include deaths that resulted from war or a violent conflict. While there is a persistent number of conflicts worldwide, resulting casualties are not considered murders. Partially due to this reason, homicide rates in Latin America are higher than those in Afghanistan or Syria. A different definition of murder in these circumstances could change the rate significantly in some countries. Causes of death Also, noteworthy is that murders are usually not random events. In the United States, the circumstances of murders are most commonly arguments, followed by narcotics incidents and robberies. Additionally, murders are not a leading cause of death. Heart diseases, strokes and cancer pose a greater threat to life than violent crime.

To address the absence of comparable city-level water data, this dataset compiles data from 15 global South cities located in sub-Saharan Africa, South Asia, and Latin America and among the regions that are the focus of the World Resources Report (WRR) "Towards a More Equal City". The 15 cities are Kampala, Uganda; Lagos, Nigeria; Maputo, Mozambique; Mzuzu, Malawi; Nairobi, Kenya; Bengaluru, India; Colombo, Sri Lanka; Dhaka, Bangladesh; Karachi, Pakistan; Mumbai, India; Caracas, Venezuela; Cochabamba, Bolivia; Rio de Janeiro, Brazil; São Paulo, Brazil; and Santiago de Cali, Colombia. To compile a data set on each city, we collaborated with local researchers who had a minimum of seven years of experience in the water sector. Data were obtained from a combination of interviews, fieldwork in an informal settlement, publicly available data sets, administrative records, websites, and project documents. Researchers in each city conducted an average of seven key informant interviews. Data were collected about household water and sanitation access at the city level and fieldwork was conducted in one informal settlement in each city. The dataset includes cost, % coverage, availability, and cost burdens on household water and sanitation practices; water intermittency; household treatment practices; access to facilities; citywide sanitation infrastructure; cost of on-site sanitation construction, and fecal sludge removal; fees for piped sewage; the lining of pit latrines; and proximity of septic tanks and pit latrines to water sources. At the city level, data were collected on the water utility, the city’s sources of water, and the water utility’s legal and administrative status. We augmented the city-level data with fieldwork and data from one informal settlement in each city, for two reasons: (1) city-level data are usually presented in averages and thus tend to mask extremes at both ends of the socioeconomic distribution; and (2) in many cities, informal settlements are excluded from formal city-level statistics because their land occupation is considered illegal. To select the informal settlement in each city, the researchers identified a centrally located, well-established settlement that did not represent either the city’s “best” or “worst” conditions but instead represented challenges to water access common in similar settlements in the city.

The average for 2017 based on 79 countries was 105 robberies per 100,000 people. The highest value was in Costa Rica: 1587 robberies per 100,000 people and the lowest value was in Oman: 1 robberies per 100,000 people. The indicator is available from 2003 to 2017. Below is a chart for all countries where data are available.

In 2022, the New Orleans-Metairie, LA metro area recorded the highest homicide rate of U.S. cities with a population over 250,000, at **** homicides per 100,000 residents, followed by the Memphis, TN-MS-AR metro area. However, homicide data was not recorded in all U.S. metro areas, meaning that there may be some cities with a higher homicide rate. St. Louis St. Louis, which had a murder and nonnegligent manslaughter rate of **** in 2022, is the second-largest city by population in Missouri. It is home to many famous treasures, such as the St. Louis Cardinals baseball team, Washington University in St. Louis, the Saint Louis Zoo, and the renowned Gateway Arch. It is also home to many corporations, such as Monsanto, Arch Coal, and Emerson Electric. The economy of St. Louis is centered around business and healthcare, and boasts ten Fortune 500 companies. Crime in St. Louis Despite all of this, St. Louis suffers from high levels of crime and violence. As of 2023, it was listed as the seventh most dangerous city in the world as a result of their extremely high murder rate. Not only does St. Louis have one of the highest homicide rates in the United States, it also reports one of the highest numbers of violent crimes. Despite high crime levels, the GDP of the St. Louis metropolitan area has been increasing since 2001.

The average for 2016 based on 74 countries was 783 thefts per 100,000 people. The highest value was in Denmark: 3949 thefts per 100,000 people and the lowest value was in Senegal: 1 thefts per 100,000 people. The indicator is available from 2003 to 2016. Below is a chart for all countries where data are available.

The average for 2017 based on 65 countries was 1.8 kidnappings per 100,000 people. The highest value was in Belgium: 10.3 kidnappings per 100,000 people and the lowest value was in Bermuda: 0 kidnappings per 100,000 people. The indicator is available from 2003 to 2017. Below is a chart for all countries where data are available.

Real travel times in Dublin are ** percent longer than travel under free-flow conditions, making it the most congested urban sprawl in the world as of 2023. This figure refers to additional average travel time throughout the week. Tackling trust in transport With trust in public transport globally taking a knock following the outbreak of Covid-19, switching to public transport modes for commuting trips to save time, emissions, and traffic may prove difficult. Activities at transit stations declined in many cities around the world as a result of ebbing demand amid the coronavirus pandemic. Consequently, transport services in highly populated cities have suffered devastating financial losses. While public transport transit had started to pick up in the beginning of 2021, it could not offset the drop recorded as a result of the pandemic. India: a climate for new policies? Among the twelve cities displayed, India is represented by *****. To tackle high levels of congestion, a congestion pricing policy was recently proposed in India, which would serve to introduce parking fees and thus push commuters to take public transport rather than drive their cars to work. Surveys collecting public opinion on this proposal have indicated that this would be a popular policy, should it be implemented. The motive behind curbing congestion in the nation’s largest cities is more than just to reduce pollution levels and time spent in traffic; India has some of the highest levels of traffic-related fatalities globally: some ******* people died in traffic accidents in 2019 – this is the highest number on record since 2005.

BackgroundBangladesh is one of the most densely populated countries in the world, with more than one-third of its people living in cities, and its air quality is among the worst in the world. The present study aimed to measure knowledge, attitudes and practice (KAP) towards air pollution and health effects among the general population living in the large cities in Bangladesh.MethodsA cross-sectional e-survey was conducted between May and July 2022 among eight divisions in Bangladesh. A convenience sampling technique was utilized to recruit a total of 1,603 participants (55.58% males; mean age: 23.84 ± 5.93 years). A semi-structured questionnaire including informed consent, socio-demographic information, as well as questions regarding knowledge (11-item), attitudes (7-item) and practice (11-item) towards air pollution, was used to conduct the survey. All analyses (descriptive statistics and regression analyses) were performed using STATA (Version 15.0) and SPSS (Version 26.0).ResultsThe mean scores of the knowledge, attitudes, and practice were 8.51 ± 2.01 (out of 11), 19.24 ± 1.56 (out of 21), and 12.65 ±5.93 (out of 22), respectively. The higher scores of knowledge, attitudes, and practice were significantly associated with several socio-demographic factors, including educational qualification, family type, residential division, cooking fuel type, etc.ConclusionsThe present study found a fair level of knowledge and attitudes towards air pollution; however, the level of practice is not particularly noteworthy. The finding suggests the need to create more awareness among the general population to increase healthy practice to reduce the health effects of air pollution.

In 2024, Pietermaritzburg (South Africa) ranked first in the crime index among African cities, with a rating of roughly ** index points. The six most dangerous areas on the continent were South African cities. The index estimates the overall level of crime in a specific territory. According to the score, crime levels are classified as very high (over 80), high (60-80), moderate (40-60), low (20-40), and very low (below 20). South Africa’s crime situation According to the crime index ranking, ************ was the most dangerous country in Africa in 2023, followed by ***************** and ******. Murder and organized crime are particularly widespread in South Africa. In 2023, the country had one of the highest murder rates globally, registering around ** homicides per 100,000 inhabitants. Moreover, South Africa’s crime scene is also characterized by the presence of organized criminal activities, for which the country ranked third in Africa. Reflecting these high levels of crime, a survey conducted in 2023 showed that around ** percent of South Africans were worried about crime and violence in the country. Crime risks in Africa The African continent hosts some of the most dangerous places worldwide. In 2023, *********** and the ******************************** were the least peaceful countries in Africa, according to the Global Peace Index. Worldwide, they ranked fourth and fifth, respectively, behind Afghanistan, Yemen, and Syria. Terrorism is a leading type of crime perpetrated in Africa. Home to Boko Aram, Nigeria is among the countries with the highest number of terrorism-related deaths globally. Furthermore, Burkina Faso had the highest number of fatalities in the world. Human trafficking is also widespread, predominantly in West Africa. The most common forms of exploitation of victims of trafficking in persons are forced labor and sexual exploitation.

Checkout my new Dashboard which is based on Airbnb dataset for listings and reviews from 5 major cities in New York and spanning from 2008 to 2012.

The data was collected from Data.world website. Power BI platform was used to perform analysis, data manipulation for measures, and developing appropriate visualizations.

Dataset: Data.world website BI Tool: Power BI

Principal findings from this dataset:

1- Brooklyn City has the greatest rating, with a 92.36 average rating score, while Staten Island has the lowest rating. 2- Based on the number of beds available in each type of room, Manhattan City is the best city, while Staten Island is the worst. 3- Lighthouse has the lowest average price and Other Property Type has the highest average price. 4- Staten Island had the lowest price contribution while Manhattan Neighborhood had the highest.

In 2024, the highest homicide rate among 22 Latin American and Caribbean countries surveyed was in Haiti, with around 62 murders committed per 100,000 inhabitants. Trinidad and Tobago came in second, with a homicide rate of 46, while Honduras ranked seventh, with 25. In the same year, the lowest rate was recorded in El Salvador, with a homicide rate of 1.9 per 100,000 inhabitants. A violence-ridden region Violence and crime are some of the most pressing problems affecting Latin American society nowadays. More than 40 of the 50 most dangerous cities in the world are located in this region, as well as one of the twenty countries with the least peace in the world according to the Global Peace Index. Despite governments’ large spending on security and high imprisonment rates, drug and weapon trafficking, organized crime, and gangs have turned violence into an epidemic that affects the whole region and a solution to this issue appears to be hardly attainable. The cost of violence in Mexico Mexico stands out as an example of the great cost that violence inflicts upon a country, since beyond claiming human lives, it also affects everyday life and has a negative impact on the economy. Mexicans have a high perceived level of insecurity, as they do not only fear becoming victims of homicide, but also of other common crimes, such as assault or rape. Such fear prevents people from performing everyday activities, for instance, going out at night, taking a taxi or going to the movies or the theater. Furthermore, the economic toll of violence in Mexico is more than considerable. For example, the cost of homicide and violent crime amounted to 2099.8 and 1778.1 billion Mexican pesos in 2023, respectively.

Santa María – a Peruvian city located to the west of the Andes mountain range – was the most polluted city in Latin America in 2024, based on fine air particulate matter concentration (PM2.5). That year, the city reported an average PM2.5 concentration of 53.4 micrograms per cubic meter. This was followed by Coyhaique, located in Chile, with an estimated PM2.5 concentration of around 40.5 μg/m³. Pollution in Latin American capitals The Chilean capital, Santiago, registered an average PM2.5 concentration of 21.3 μg/m³ in 2023. Lima, the Peruvian capital, had an estimated PM2.5 concentration of around 19.7 μg/m³, while in the capital of Mexico (Mexico City), air pollution amounted to 22.3 μg/m³. The World Health Organization's air quality standards recommend a maximum annual average concentration of 10 μg/m³. The burden of pollution on health Air particulate pollution has been associated with an increase in mortality from cardiovascular and respiratory diseases, as well as development of lung cancer. This is specially concerning considering that nearly 2.8 billion people worldwide are exposed to hazardous levels of air pollution. In particular, South Asia was home to the countries with the highest exposure to hazardous concentrations of air pollution in 2022.

Sarajevo was the most polluted capital city in Europe in 2024, with an average PM2.5 concentration of **** micrograms per cubic meter of air (μg/m³). This level of air pollution was roughly six times higher than World Health Organization guidelines. The second most polluted capital city in Europe that year was Skopje, North Macedonia, with an average PM2.5 concentration of **** μg/m³.
How bad is air pollution in Europe? Poor air quality is a major issue in Europe, particularly in cities. In fact, more than ** percent of the EU urban population were exposed to PM2.5 concentrations above WHO guidelines in 2021. Average annual PM2.5 levels in populated European cities like Rome, Berlin, and Paris are often double recommended limits. Sources of particulate matter emissions There are several sources of PM2.5 emissions in the European Union, including transportation, energy supply, and agriculture, but the biggest contributor is the residential, commercial, and institutional sector. While PM2.5 emissions from other sectors have fallen notably since the turn of the century, residential, commercial, and institutional emissions have seen little change.

The statistic shows the homicide rate worldwide in 2010, by region. In 2010, the homicide rate of Africa stood at 17.4 homicides per 100,000 of population.

A ranking of the most dangerous cities in the world based on murder rate per capita can be found here.

In Europe, the Baltic countries of Latvia and Lithuania had the highest and third highest homicide rates respectively in 2023. Latvia had the highest rate at over four per 100,000 inhabitants. Meanwhile, the lowest homicide rate was found in Liechtenstein, with zero murders The most dangerous country worldwide Saint Kitts and Nevis is the world's most dangerous country to live in in terms of murder rate. The Caribbean country had a homicide rate of 65 per 100,000 inhabitants. Nine of the 10 countries with the highest murder rates worldwide are located in Latin America and the Caribbean. Whereas Celaya in Mexico was listed as the city with the highest murder rate worldwide, Colima in Mexico was the city with the highest homicide rate in Latin America, so the numbers vary from source to source. Nevertheless, several Mexican cities rank among the deadliest in the world when it comes to intentional homicides. Violent conflicts worldwide Notably, these figures do not include deaths that resulted from war or a violent conflict. While there is a persistent number of conflicts worldwide, resulting casualties are not considered murders. Partially due to this reason, homicide rates in Latin America are higher than those in countries such as Ukraine or the DR Congo. A different definition of murder in these circumstances could change the rate significantly.

The United States had, by far, the highest homicide rate of the G7 countries between 2000 and 2023. In 2023, it reached 5.76 homicides per 100,000 inhabitants, a decrease from 6.78 in 2021. By comparison, Canada, the G7 nation with the second-highest homicide rate, had 1.98 homicides per 100,000 inhabitants in 2023. Out of each G7 nation, Japan had the lowest rate with 0.23 homicides per 100,000 inhabitants.

In 2024, there were nearly 26.20homicides per 100,000 inhabitants in the country, down from a homicide rate of 26.8 a year earlier. Since 2017, when it peaked, the homicide rate in Venezuela has been decreasing year after year.

Falling homicide rate but still higher than the Latin American average The country held the fifth position for the highest homicide rate in Latin America, recording 26.2 homicides per 100,000 inhabitants in 2024, even after experiencing a steady decrease in the rate over the years. In line with this alarming rate, the Venezuelan city of Cumana was ranked as the 11th most dangerous city in the world in 2023, reporting a rate of 62.42. Among these homicide cases, the majority, approximately 5,800, are still under investigation, while the remainder falls into categories of closed cases, those resisting authority, or have been categorized as disappearances, painting a grim picture of the challenges faced in addressing violent crime.

Corruption in Venezuela In the corruption index, which ranges from 0 representing the worst case to 100 signifying no corruption, Venezuela has earned the unfortunate distinction of being the most corrupt country in Latin America, with a meager score of 10 in 2024. Moreover, the estimated corruption control score has been steadily declining, reaching -1.69 in 2024, where lower numbers indicate a higher degree of corruption, painting a worrisome picture. To compound matters, the risk of money laundering and terrorist financing has persistently remained at a high level, recording a score of 7.59 during 2024.