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Ranked: The World’s Most Surveilled Cities

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Ranked: The World’s Most Surveilled Cities

This may come as a surprise, but it wasn’t until 2007 that the global urban population overtook the rural population. At that time, the two groups were split nearly 50/50, with around 3.3 billion people apiece.

Today, the percentage of people living in urban areas has grown to over 55%, and is expected to reach 68% by 2050. Due to this trend, many of the world’s largest cities have become home to tens of millions of people.

In response to such incredible density, governments, businesses, and households have installed countless security cameras for various purposes including crime protection. To grasp the scale of this surveillance, we’ve taken data from a recent report by Comparitech to visualize the most surveilled cities in the world.

The List (Excluding China)

Excluding China for the time being, these are the world’s 10 most surveilled cities.

CityPopulationNumber of CamerasCameras per
1,000 people
🇮🇳 Indore, India3.2M200,60063
🇮🇳 Hyderabad, India10.5M440,29942
🇮🇳 Delhi, India16.3M436,60027
🇮🇳 Chennai, India11.5M282,12625
🇸🇬 Singapore6.0M108,98118
🇷🇺 Moscow, Russia12.6M213,00017
🇮🇶 Baghdad, Iraq7.5M120,00016
🇬🇧 London, UK9.5M127,37313
🇷🇺 St. Petersburg, Russia5.5M70,00013
🇺🇸 Los Angeles, U.S.3.9M34,9599

Figures rounded

The top four cities all belong to India, which is the world’s second largest country by population. Surveillance cameras are playing a major role in the country’s efforts to reduce crimes against women.

Further down the list are cities from a variety of countries. One of these is Russia, which has expanded its use of surveillance cameras in recent years. Given the country’s track record of human rights violations, activists are worried that facial recognition technology could become a tool of oppression.

The only U.S. city on the list is Los Angeles, which contains some of the country’s wealthiest neighborhoods and municipalities. That includes Beverly Hills, which according to the Los Angeles Times, has over 2,000 cameras for its population of 32,500. That translates to about 62 cameras per 1,000 people, meaning that Beverly Hills would finish at #2 in the global ranking if it were listed as a separate entity.

Surveillance in China

IHS Markit estimates that as of 2021, there are over 1 billion surveillance cameras installed worldwide. The firm also believes that 54% of these cameras are located in China.

Because of limited transparency, it’s impossible to pinpoint how many cameras are actually in each Chinese city. However, if we assume that China has 540 million cameras and divide that amongst its population of 1.46 billion, we can reasonably say that there are 373 cameras per 1,000 people (figures rounded).

Cameras in China

A limitation of this approach is that it assumes everyone in China lives in a city, which is far from reality. The most recent World Bank figures suggest that 37% of China’s population is rural, which equates to over 500 million people.

With this in mind, the number of cameras per 1,000 people in a Tier 1+ Chinese city (e.g. Shanghai) is likely far greater than 373.

More About China

China’s expansive use of cameras and facial recognition technology has been widely documented in the media. These networks enable the country’s social credit program, which gives local governments an unprecedented amount of oversight over its citizens.

For example, China’s camera networks can be used to verify ATM withdrawals, permit access into homes, and even publicly shame people for minor offences like jaywalking.

This might sound like a dystopian nightmare to Western audiences, but according to Chinese citizens, it’s mostly a good thing. In a 2018 survey of 2,209 citizens, 80% of respondents approved of social credit systems.

If you’re interested in learning more about surveillance in Chinese cities, consider this video from The Economist, which explores the opportunities and dangers of comprehensive state control.

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Ranked: The Top 10 EV Battery Manufacturers in 2023

Asia dominates this ranking of the world’s largest EV battery manufacturers in 2023.

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A treemap showing the top 10 EV battery manufacturers in 2023

The Top 10 EV Battery Manufacturers in 2023

This was originally posted on our Voronoi app. Download the app for free on iOS or Android and discover incredible data-driven charts from a variety of trusted sources.

Despite efforts from the U.S. and EU to secure local domestic supply, all major EV battery manufacturers remain based in Asia.

In this graphic we rank the top 10 EV battery manufacturers by total battery deployment (measured in megawatt-hours) in 2023. The data is from EV Volumes.

Chinese Dominance

Contemporary Amperex Technology Co. Limited (CATL) has swiftly risen in less than a decade to claim the title of the largest global battery group.

The Chinese company now has a 34% share of the market and supplies batteries to a range of made-in-China vehicles, including the Tesla Model Y, SAIC’s MG4/Mulan, and various Li Auto models.

CompanyCountry2023 Production
(megawatt-hour)
Share of Total
Production
CATL🇨🇳 China242,70034%
BYD🇨🇳 China115,91716%
LG Energy Solution🇰🇷 Korea108,48715%
Panasonic🇯🇵 Japan56,5608%
SK On🇰🇷 Korea40,7116%
Samsung SDI🇰🇷 Korea35,7035%
CALB🇨🇳 China23,4933%
Farasis Energy🇨🇳 China16,5272%
Envision AESC🇨🇳 China8,3421%
Sunwoda🇨🇳 China6,9791%
Other-56,0408%

In 2023, BYD surpassed LG Energy Solution to claim second place. This was driven by demand from its own models and growth in third-party deals, including providing batteries for the made-in-Germany Tesla Model Y, Toyota bZ3, Changan UNI-V, Venucia V-Online, as well as several Haval and FAW models.

The top three battery makers (CATL, BYD, LG) collectively account for two-thirds (66%) of total battery deployment.

Once a leader in the EV battery business, Panasonic now holds the fourth position with an 8% market share, down from 9% last year. With its main client, Tesla, now sourcing batteries from multiple suppliers, the Japanese battery maker seems to be losing its competitive edge in the industry.

Overall, the global EV battery market size is projected to grow from $49 billion in 2022 to $98 billion by 2029, according to Fortune Business Insights.

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