Mapped: Chinese Provinces With Cities Over 1 Million People

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9 seconds ago

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May 30, 2024 Graphics/Design:

See this visualization first on the Voronoi app.

Mapped: Chinese Provinces With Cities Over 1 Million People

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.

Almost two-thirds of the 1.4 billion Chinese population lives in an urban area. But how does this play out across the country’s geography?

This map shows the Chinese provinces with cities over a million residents. Data for this graphic is sourced from citypopulation.de.

Ranked: Chinese Provinces With Cities Over 1 Million People

China’s Guangdong province has 17 cities with a population size of 1 million or more. It is also China’s most populous province, home to 127 million people. This makes it comparable to the size of Japan, the 12th most populous country in the world.

RankProvinceCities With 1 Million People 1Guangdong17 2Jiangsu12 3Shandong9 4Hebei6 5Zhejiang6 6Liaoning5 7Guangxi*4 8Henan4 9Anhui3 10Fujian3 11Heilongjiang3 12Hubei3 13Hunan3 14Inner Mongolia*3 15Jiangxi3 16Jilin2 17Gansu2 18Shaanxi2 19Shanxi2 20Sichuan2 21Xinjiang*2 22Beijing**1 23Chongqing**1 24Guizhou1 25Hainan1 26Ningxia*1 27Qinghai1 28Shanghai**1 29Tianjin**1 30Yunnan1 31Hong Kong***1 32Macao***1
*Autonomous Region. **Direct-Administered Municipality. ***Special Administrative Region.

Jiangsu, ranked fourth in population overall, is the only other province which has 10+ cities with a million or more inhabitants.

Meanwhile, some of China’s most populous cities—Shanghai, Beijing, Tianjin, and Chongqing—are administered directly by the central government, and do not fall under provincial control.

In fact, Shanghai and Beijing have informal “population caps” to prevent them from growing larger, in a bid to reduce pollution, overcrowding, and pressure on public services.

On the other hand, Tibet’s cold climes and rugged terrain make for a sparsely-populated area, totalling 3 million people across 1.2 million km². Tibet is the only province-level division in China without a single city over a million residents.

All together, China has

Mapped: Indian States with Cities Over 1 Million People

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16 seconds ago

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May 20, 2024 Graphics/Design:

See this visualization first on the Voronoi app.

Mapped: Indian States with Cities Over 1 Million People

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.

Slightly more than one-third of the 1.4 billion Indian population lives in an urban area. So where are the country’s most populous cities, and how are they spread across the country’s 28 states and eight union territories?

This map shows the number of Indian urban agglomerations (cities) with more than a million residents in each jurisdiction. Data for this graphic is sourced from 2024 urban agglomeration estimates in the UN World Urbanization Prospects.

Ranked: Indian States by Cities with 1M Residents

India’s Uttar Pradesh state has 10 cities with a population size of 1 million or more. It is also India’s most populous state, home to 240 million people. This makes it comparable to the size of Pakistan, the fifth most populous country in the world.

Indian StateCities with 1M Residents (2024)City Names Uttar Pradesh10Lucknow, Kanpur, Agra, Meerut,
Varanasi, Prayagraj,
Bareilly, Aligarh,
Moradabad, Saharanpur Kerala7Kozhikode,
Malappuram,
Thrissur, Kochi,
Thiruvananthapura,
Kannur, Kollam Maharashtra6Mumbai, Pune,
Nagpur, Nashik,
Aurangabad, Solapur Tamil Nadu6Chennai, Coimbatore,
Madurai, Tiruppur,
Tiruchirappalli, Salem Gujarat4Ahmedabad, Surat,
Vadodara, Rajkot Madhya Pradesh4Indore, Bhopal,
Jabalpur, Gwalior Jharkhand3Jamshedpur, Ranchi,
Dhanbad Karnataka3Bengaluru, Mysore,
Hubli-Dharwad Punjab3Ludhiana, Amritsar,
Jalandhar Rajasthan3Jaipur, Jodhpur, Kota West Bengal3Kolkata, Asansol, Siliguri Andhra Pradesh2Visakhapatnam,
Vijayawada Chhattisgarh2Raipur, Durg-Bhilainagar Telangana2Hyderabad, Warangal Assam1Guwahati Bihar1Patna Odisha1Bhubaneswar Uttarakhand1Dehradun Chandigarh*1Chandigargh Delhi*1New Delhi Jammu & Kashmir*1Srinagar
*Union Territories. Figures rounded. Some city names may have changed since this data was published.

Further south, Kerala (7), Maharashtra (6), and Tamil Nadu (6) also have more than five cities with a million or more people.

Meanwhile, some cities, including India’s national capital, New Delhi, are either in or are themselves union territories—areas directly administered by the central government.

Ten Indian states—most of them from the country’s northeast region—don’t have a single city with 1 million residents.

All together, India has 65 cities with more than one million inhabitants.

The Most Polluted Cities in the U.S.

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47 seconds ago

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May 14, 2024 Graphics & Design The Most Polluted U.S. Cities in 2024

According to the World Health Organization, air pollution is responsible for 7 million deaths annually, and could cost the global economy between $18–25 trillion by 2060 in annual welfare costs, or roughly 4–6% of world GDP.

And with predictions that 7 in 10 people will make their homes in urban centers by mid-century, cities are fast becoming one of the frontlines in the global effort to clear the air.

In this visualization, we use 2024 data from the State of the Air report from the American Lung Association to show the most polluted cities in the United States.

What is Air Pollution?

Air pollution is a complex mixture of gases, particles, and liquid droplets and can have a variety of sources, including wildfires and cookstoves in rural areas, and road dust and diesel exhaust in cities. 

There are a few kinds of air pollution that are especially bad for human health, including ozone and carbon monoxide, but here we’re concerned with fine particulate matter that is smaller than 2.5 microns, or PM2.5 for short. 

The reason for the focus is because at that small size, particulate matter can penetrate the bloodstream and cause all manner of havoc, including cardiovascular disease, lung cancer, and chronic pulmonary disease. 

The American Lung Association has set an annual average guideline of 9 µg/m³ for PM2.5, however, the World Health Organization has set a much more stringent limit of 5 µg/m³.

The 21 Worst Polluted Cities in the U.S.

Here are the top 21 most polluted cities in the U.S., according to their annual average PM2.5 concentrations:

RankCity, StateAnnual average concentration, 2020-2022 (µg/m3) 1Bakersfield, CA18.8 2Visalia, CA18.4 3Fresno, CA17.5 4Eugene, OR14.7 5Bay Area, CA14.3 6Los Angeles, CA14.0 7Sacramento, CA13.8 8Medford, OR13.5 9Pheonix, AZ12.4 10Fairbanks, AK12.2 11Indianapolis, IN11.9 12Yakima, WA11.8 13Detroit, MI11.7 T14Chico, CA11.6 T14Spokane, WA11.6 15Houston, TX11.4 16El Centro, CA11.1 17Reno, NV11.0 18Pittsburgh, PA10.9 T19Kansas City, KS10.8 T19Las Vegas, NV10.8

Six of

Mapped: U.S. States By Number of Cities Over 250,000 Residents

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12 seconds ago

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May 13, 2024 Graphics/Design:

See this visualization first on the Voronoi app.

Mapped: U.S. States By Number of Cities Over 250K Residents

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.

Over 80% of the American population lives in an “urban area” according to the U.S. Census Bureau. But where are all of the country’s largest cities, and what patterns can we see from their state locations?

This map shows U.S. states by their number of incorporated areas (i.e. cities or towns) that have more than 250,000 residents. Data for this map comes from 2024 estimates made by World Population Review, which were based on the latest U.S. Census Bureau figures.

ℹ️ An incorporated area is a legally recognized region with its own local government, empowered to enact and enforce laws within its boundaries, often including cities, towns, or villages. Ranked: U.S. States By Number of Cities Over 250K Residents

California and Texas—also the most populous U.S. states—each have more than 10 cities with at least a quarter of a million inhabitants.

StateCities With 250K
PeopleCity Names California15Los Angeles, San
Diego, San Jose,
San Fransisco,
Fresno, Sacramento,
Long Beach, Oakland,
Bakersfield, Anaheim,
Riverside, Stockton,
Irvine, Santa Ana,
Chula Visa Texas12Houston, San
Antonio, Dallas,
Fort Worth, Austin,
El Paso, Arlington,
Corpus Christi, Plano,
Lubbock, Laredo,
Irving Arizona6Phoenix, Tucson,
Mesa, Chandler,
Gilbert, Glendale Florida6Jacksonville, Miami,
Tampa, Orlando,
St. Petersburg,
Port St. Lucie North Carolina5Charlotte, Raleigh,
Greensboro, Durham,
Winston-Salem Ohio4Columbus, Cleveland,
Cincinnati, Toledo Nevada4Las Vegas, Henderson,
North Las Vegas,
Reno Colorado3Denver, Colorado
Springs, Aurora Tennessee2Nashville, Memphis New York2New York, Buffalo Pennsylvania2Philadelphia, Pittsburgh Indiana2Indianapolis,
Fort Wayne Oklahoma2Oklahoma City, Tulsa Kentucky2Louisville/Jefferson
County, Lexington Wisconsin2Milwaukee, Madison Missouri2Kansas City, St. Louis Nebraska2Omaha, Lincoln Virginia2Virginia Beach,
Chesapeake Minnesota2Minneapolis, St. Paul New Jersey2Newark, Jersey City Illinois1Chicago Washington1Seattle District of Columbia1Washington D.C. Massachusetts1Boston Oregon1Portland Michigan1Detroit New Mexico1Albuquerque Maryland1Baltimore Georgia1Atlanta Kansas1Wichita Louisiana1New Orleans Hawaii1Honolulu Alaska1Anchorage

Two other warm weather states, Arizona and Florida, also have a