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2026-04-12 21:27:32

Mapped: Only One Country Can Feed Itself Fully

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Food security isn’t just about producing enough calories—it’s about covering the full range of nutrients needed for a balanced diet.

This map shows how many of seven essential food groups each country can supply domestically, based on data from a Nature Food study. The result reveals a striking gap: just one country can meet all its food needs on its own.

The analysis covers key categories including starchy staples, fruits, vegetables, dairy, meat, fish, and legumes—offering a more complete picture of national food independence. Even major agricultural producers like the United States and China still depend on imports for at least one of these groups.

Only One Country Covers All Food Groups

Guyana is the only country that can produce enough of all seven essential food groups to meet domestic demand. It not only covers every category, but exceeds needs in starchy staples and fruit—making it a clear global outlier in food independence.

China and Vietnam come close, each covering six out of seven groups. However, both fall short in dairy production, reflecting structural constraints in key sectors. Even top performers still rely on imports for at least one essential category.

Country	Self-Sufficient Food Groups (of 7)
Guyana	7
China	6
Vietnam	6
Paraguay	5
New Zealand	5
Uruguay	5
Vanuatu	5
Argentina	5
Brazil	5
Lithuania	5
Estonia	5
Australia	5
Latvia	5
Spain	5
Serbia	5
Kazakhstan	5
Croatia	5
Ukraine	5
Peru	5
Türkiye	5
Romania	5
Uzbekistan	5
Russia	5
Lao PDR	5
Kyrgyzstan	5
Oman	5
Philippines	5
Canada	4
Denmark	4
United States	4
Belarus	4
Netherlands	4
Poland	4
Chile	4
Belgium	4
Moldova	4
France	4
Hungary	4
Papua New Guinea	4
Myanmar	4
Ecuador	4
Dominican Republic	4
Senegal	4
Greece	4
Albania	4
Nicaragua	4
Portugal	4
Niger	4
Italy	4
Israel	4
Cameroon	4
Malawi	4
Bolivia	4
Armenia	4
Mexico	4
Thailand	4
Mali	4
Azerbaijan	4
Slovakia	4
Tunisia	4
South Sudan	4
Guatemala	4
Iran	4
Turkmenistan	4
Tonga	4
Bosnia and Herzegovina	4
Indonesia	4
Morocco	4
Nepal	4
Syrian Arab Republic	4
Suriname	4
Iceland	3
Tuvalu	3
Ireland	3
Norway	3
Costa Rica	3
Samoa	3
Central African Republic	3
Belize	3
Finland	3
Guinea-Bissau	3
Burkina Faso	3
Germany	3
Sudan	3
Dominica	3
Czechia	3
North Macedonia	3
Guinea	3
Ghana	3
Panama	3
Tanzania	3
Sweden	3
Colombia	3
Chad	3
Uganda	3
Rwanda	3
India	3
Bulgaria	3
South Africa	3
Côte d'Ivoire	3
Cyprus	3
Tajikistan	3
Solomon Islands	3
South Korea	3
Jamaica	3
Egypt	3
Lebanon	3
Burundi	3
Kenya	3
Angola	3
Pakistan	3
Algeria	3
Venezuela	3
Gabon	3
Sierra Leone	3
Saudi Arabia	3
Kiribati	2
Micronesia	2
Seychelles	2
Mongolia	2
Luxembourg	2
Austria	2
Comoros	2
Namibia	2
Mauritania	2
Switzerland	2
Slovenia	2
Sri Lanka	2
Benin	2
United Kingdom	2
Nauru	2
Cambodia	2
Nigeria	2
Georgia	2
Montenegro	2
Fiji	2
Malaysia	2
St. Vincent and the Grenadines	2
Honduras	2
Mozambique	2
Cuba	2
Bhutan	2
Sao Tome and Principe	2
Ethiopia	2
Zambia	2
Bangladesh	2
Botswana	2
Grenada	2
Barbados	2
St. Lucia	2
Eswatini	2
El Salvador	2
Libya	2
Togo	2
New Caledonia	2
Haiti	2
Jordan	2
Maldives	1
Zimbabwe	1
DR Congo	1
Bahamas, The	1
Republic of the Congo	1
Japan	1
Cabo Verde	1
Madagascar	1
Timor-Leste	1
Trinidad and Tobago	1
Somalia	1
Mauritius	1
The Gambia	1
Liberia	1
French Polynesia	1
Kuwait	1
St. Kitts and Nevis	1
Malta	1
Djibouti	1
Antigua and Barbuda	1
Lesotho	1
Bahrain	1
Hong Kong	1
Afghanistan	0
Iraq	0
Yemen	0
United Arab Emirates	0
Qatar	0
Macao	0

Wealth Doesn’t Guarantee Food Independence

High-income countries often rank lower than expected. For example, Canada and the United States each cover only four out of seven food groups. Despite strong production in meat, dairy, and grains, both countries depend heavily on imports for fruits and vegetables.

This pattern reflects geography and climate. Northern countries face shorter growing seasons, limiting domestic output of fresh produce. As a result, even advanced agricultural systems cannot fully produce a balanced diet domestically.

Structural Constraints Shape Regional Gaps

The Middle East and North Africa consistently rank among the least self-sufficient regions. Limited water resources play a major role. The region holds roughly 6% of the global population but less than 2% of renewable water supply, restricting agricultural expansion.

Fish production is another major constraint globally. According to the Food and Agriculture Organization (FAO), Asia accounts for 91% of aquaculture output. This concentration leaves many countries dependent on seafood imports, even when they can produce meat or crops domestically.

Learn More on the Voronoi App

If you enjoyed today’s post, check out this graphic about how 30% of food produced worldwide goes to waste.

2026-04-12 19:22:45

Mapped: The Cost of Living Across America

See visuals like this from many other data creators on our Voronoi app. Download it for free on iOS or Android and discover incredible data-driven charts from a variety of trusted sources.

Living in one U.S. state versus another can change your annual costs by as much as $75,000.

Using GOBankingRate’s analysis of the Bureau of Labor Statistics’ 2024 Consumer Expenditure Survey and Missouri Economic Research and Information Center data as of Q3 2025, this map shows how annual household costs vary across all 50 states.

From $141,127 in Hawaii to $66,284 in Oklahoma, the difference is stark. For many households, location alone can be one of the biggest drivers of overall cost.

The Most Expensive States to Live In

Hawaii tops the list at $141,127 per year, making it the most expensive state by a wide margin. That is about $75,000 more than Oklahoma and roughly $63,000 above the U.S. average.

In many cases, paying off a home in the Aloha State requires multi-generational efforts due to steep housing costs. Residents also pay 28% more for healthcare and 33% more for groceries than the national average.

This table shows average household expenditures by state, based on cost-of-living indexes and consumer spending across groceries, housing, utilities, transportation, and healthcare:

Massachusetts ($118,431), California ($107,357), Alaska ($100,289), and New York ($99,425) round out the top five, reflecting a mix of housing pressure, geographic isolation, and higher overall costs.

The Cheapest States to Live In

In Oklahoma, average annual household spending is $66,284, making it the most affordable state overall.

With the median home sale price in Oklahoma City at $240,000, housing remains relatively affordable, with prices rising just 1% year over year as of December 2025. By contrast, the U.S. median stood at nearly $359,000.

Meanwhile, the state benefits from lower gas prices than Texas due to lower taxes and regional supply advantages, along with some of the most affordable groceries in the country.

Mississippi ranks second at $67,147, where annual living costs are more than $10,000 lower than in Florida.

Texas ranks 11th, with average spending of $71,310. Despite strong interstate migration, robust home construction has helped ease pressure on prices. Notably, home prices in Houston fell 2.2% annually last year to about $302,000.

The map highlights a clear reality: in the U.S., location alone can shift annual living costs by tens of thousands of dollars. For households considering a move, that difference can rival the impact of income itself.

Learn More on the Voronoi App

To learn more about this topic, check out this graphic on the global cost of living index in 2026.

2026-04-11 21:26:09

Ranked: The Most Polite Countries in the World

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What makes a country “polite”—and which ones stand out globally?

A new survey of over 4,600 respondents by Remitly reveals a clear frontrunner. Japan alone captured more than 35% of all votes, far ahead of every other country on the list.

The ranking highlights how perceptions of politeness vary worldwide, while also revealing strong regional patterns across Europe and Asia.

Perceptions of politeness can shape everything from tourism experiences to international business relationships. For travelers, these rankings often influence expectations around etiquette, hospitality, and day-to-day interactions abroad.

Japan: The World’s Clear Favorite

Japan stands far ahead of every other country, capturing 35.2% of all votes—nearly three times more than second-place Canada. No other country breaks even 15%, underscoring just how dominant Japan’s reputation is globally.

Japanese culture is famous for its high emphasis on respect, etiquette, and social harmony. The country’s blend of tradition and recognizable cultural exports has helped it become well-regarded nearly everywhere.

The following data table lists the 25 most polite countries worldwide.

Rank	Country	Most Polite Nations (%)
1	Japan	35.2%
2	Canada	13.4%
3	United Kingdom	6.2%
4	China	3.1%
5	Germany	2.8%
6	Philippines	2.3%
7	Sweden	2.3%
8	Denmark	2.1%
9	Finland	1.9%
10	South Africa	1.8%
11	Australia	1.7%
11	Switzerland	1.7%
13	United States	1.6%
14	India	1.5%
15	Ireland	1.5%
16	New Zealand	1.4%
17	Norway	1.2%
18	Netherlands	1.2%
19	Thailand	1.2%
19	France	1.2%
21	Brazil	1.1%
22	Spain	1.1%
23	Belgium	1.0%
24	Italy	1.0%
25	Austria	1.0%

Certain traits associated with local culture no doubt contribute to the Japanese people’s reputation of politeness, including the value placed on cleanliness and punctuality.

Beyond this, citizens of other countries may be surprised when encountering Japanese bowing, a way of conveying respect, as well as other unique elements such as relative silence on public transit within the country.

Canada’s High Respect Premium

Canada ranks second with 13.4% of the vote—less than half of Japan’s total, highlighting the gap between first place and the rest of the field.

The sprawling North American country has been deemed the most respected country worldwide by one measure, while Canadians have long been known as some of the friendliest people on the globe.

Canada’s hospitality and civility has boosted the country’s reputation for politeness, both in dealings with each other and with people from other countries. This has been reinforced in some corners by the country’s relative contrasts with its southern neighbor, the United States, which obtained just over a tenth of the share of votes (1.6%) of Canada.

Europe’s High Prevalence of Politeness

After Canada, the United Kingdom ranks third at 6.2%, leading a strong European showing. In total, European countries make up more than half of the top 25—suggesting that politeness, as perceived globally, is strongly associated with the region.

Northern Europeans appear to fare better than their peers across the Old Continent, with the UK joined in the top 10 by Germany (2.8%) and Nordic countries like Sweden (2.3%), Denmark (2.1%), and Finland (1.9%).

In contrast, Asian countries nabbed a fifth of the spots on the list, while Africa was home to only one country in the top 25: South Africa, which at 1.8% of all votes cast landed at the 10th position worldwide.

Learn More on the Voronoi App

If you enjoyed today’s post, check out The Best Countries For Culture & Heritage, As Determined by the People on Voronoi.Use This Visualization

2026-04-11 19:44:32

Mapped: The Highest Point in Every U.S. State

See visuals like this from many other data creators on our Voronoi app. Download it for free on iOS or Android and discover incredible data-driven charts from a variety of trusted sources.

From Denali in Alaska to Britton Hill in Florida, the highest points in each U.S. state reveal a dramatic divide in elevation across the country.

This map shows the tallest natural point in every state, measured in feet above sea level, using data from the USGS via the U.S. Census Bureau’s Statistical Abstract.

The differences are stark: Alaska rises above 20,000 feet, while several coastal states don’t even reach 1,000 feet.

Alaska Towers Above All Other U.S. States

Alaska dominates the ranking. Its highest point, Denali, reaches 20,320 ft—5,826 ft higher than California’s Mount Whitney in second place. This single gap is larger than the entire elevation range of many eastern states, highlighting just how extreme Alaska’s terrain is.

That makes Denali nearly 59 times taller than Florida’s highest point, underscoring the extreme range in U.S. elevation.

The data table below ranks all 50 U.S. states by their highest elevation measured in feet above sea level:

A clear geographic pattern emerges: every state above 10,000 ft lies west of the Mississippi River. These peaks cluster in major mountain systems like the Rockies, Sierra Nevada, and Cascades, while the eastern half of the country is defined by much older, lower ranges.

After Oregon at 11,239 ft, elevations drop sharply—falling more than 2,400 ft to Texas and continuing downward across much of the central United States.

From there, the list tapers into the Appalachians and the interior East, where states like North Carolina, Tennessee, and New Hampshire still reach above 6,000 ft, but far below the tallest peaks in the Rockies, Cascades, Sierra Nevada, and Alaska Range.

Only Five States Top Out Below 1,000 Feet

At the other end of the spectrum, five states never reach 1,000 feet.

Florida ranks last at just 345 ft—meaning Alaska’s highest point is nearly 59 times taller. These low peaks are concentrated in flat, coastal regions, where elevation changes are minimal compared to the mountainous West.

Those states are mostly coastal and low-lying, which helps explain why their peaks sit far below the national median of states’ highest points of 4,588.5 ft.

In total, 37 states rise above 2,000 ft, and 22 exceed 5,000 ft, highlighting how much of the country still reaches significant elevation despite the dominance of the West.

Learn More on the Voronoi App

If you enjoyed today’s post, check out Fourteeners, the Highest Mountains of the U.S. on Voronoi.

2026-04-11 15:22:47

Mapped: Where Does Eastern Europe Begin and End?

The animated map above uses data from various organizations to highlight interpretations of Eastern Europe’s geographical extent.

At a glance, the visualization shows a tight core centered on Russia, Ukraine, and Belarus, with boundaries stretching eastward into Russia and stopping along a debated western frontier that cuts through Central Europe.

Eastern Europe’s Borders, Defined

Below are major groupings from the UN, CIA World Factbook, StAGN (Germany’s committee on geographical names), and The European Correspondent, the creator of the map.

Country	UN (Regional)	UN (M49)	CIA World Factbook	Euro. Correspondent	StAGN
Belarus	✓	✓	✓	✓	✓
Russia	✓	✓	✓	✓	✓
Ukraine	✓	✓	✓	✓	✓
Moldova	✓	✓	✓	✓
Bulgaria	✓	✓
Czechia	✓	✓
Hungary	✓	✓
Poland	✓	✓
Romania	✓	✓
Slovakia	✓	✓
Estonia	✓		✓
Latvia	✓		✓
Lithuania	✓		✓
Albania	✓			✓
Azerbaijan	✓			✓
Georgia	✓			✓
Albania	✓
Bosnia & Herz.	✓
Croatia	✓
Montenegro	✓
N. Macedonia	✓
Serbia	✓
Slovenia	✓

A Region Defined by Perspective

Unlike continents or countries, Eastern Europe is not a fixed geographic entity. Instead, its definition has evolved over time, shaped by empires, ideology, and institutions. According to various modern definitions, the region can include anywhere from a handful of countries to over a dozen.

Historically, the term gained prominence during the Cold War, when it often referred to Soviet-aligned nations. This political framing still influences perceptions today.

The Core vs. the Fringe

Despite disagreements, some countries are almost always included:

• Russia
• Ukraine
• Belarus

These nations form the “core” of Eastern Europe across most academic and institutional definitions. Beyond them, the picture becomes less clear. Countries like Poland, Hungary, and the Czech Republic are sometimes included, but are often classified as Central Europe instead.

Research from institutions like the University of Basel highlights how these shifting classifications reflect cultural identity as much as geography.

How Far Does It Stretch?

At its maximum extent, Eastern Europe can span from Germany’s eastern border all the way to the Ural Mountains in Russia. This broader definition may include the Balkans and parts of Central Europe.

At its minimum, however, the region shrinks to just a few countries in Eastern Slavic territory. That these narrower definitions often reflect cultural or linguistic commonalities.

Ultimately, where Eastern Europe “begins” and “ends” depends on who you ask, which makes it less of a place on a map and more of an idea shaped by history and geopolitics.

2026-04-10 19:07:25

The Fastest-Growing and Shrinking Populations (2000-2025)

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Over the past 25 years, some countries have more than tripled their populations, while others have seen sharp declines that are reshaping their economies and societies.

This graphic uses IMF data to rank the 24 countries with the fastest population growth and decline since 2000, measured by total percentage change.

Gulf States Lead the World in Population Growth

The Persian Gulf dominates the growth rankings—but not because of high birth rates.

Qatar leads the world with a staggering 423% population increase, growing from roughly 594,000 to 3.1 million. The UAE follows at 250%, while Bahrain (+154%), Kuwait (+139%), and Oman (+129%) also rank among the top 10.

The data table below shows the top 24 countries by population growth from 2000 to 2025:

Rank	Country	Population Growth 2000–2025
1	Qatar	423.4%
2	United Arab Emirates	249.7%
3	Equatorial Guinea	166.6%
4	Niger	157.0%
5	Bahrain	153.9%
6	Papua New Guinea	149.6%
7	Angola	139.7%
8	Kuwait	139.1%
9	Oman	129.1%
10	Chad	126.9%
11	Jordan	126.3%
12	Burundi	123.6%
13	Democratic Republic of the Congo	121.8%
14	Uganda	120.1%
15	Zambia	119.5%
16	Mali	118.4%
17	Yemen	112.9%
18	Gambia	112.8%
19	Madagascar	108.7%
20	Republic of Congo	107.0%
21	Benin	106.6%
22	Tanzania	106.4%
23	Mozambique	102.3%
24	Ivory Coast	102.3%

These surges are almost entirely driven by imported labor migration. Massive construction projects, oil and gas expansion, and broader economic diversification efforts drew millions of foreign workers to the region over the past two decades.

Outside the Gulf, the fastest-growing populations are concentrated in sub-Saharan Africa. Equatorial Guinea (+167%), Niger (+157%), and Papua New Guinea (+150%) round out the top five.

Angola (+140%), Chad (+127%), the Democratic Republic of the Congo (+122%), Burundi (+124%), Uganda (+120%), and Zambia (+120%) all more than doubled their populations. High fertility rates and gradually improving healthcare have sustained rapid growth across the region.

Eastern Europe’s Population Collapse

In contrast, much of Eastern Europe is experiencing sustained population decline. Bulgaria (-23%), Latvia (-22%), Moldova (-19%), and Lithuania (-18%) have all lost roughly a fifth or more of their populations since 2000.

Ukraine stands apart with the steepest decline at -33%, losing roughly 16 million people—from 48.7 million in 2000 to an estimated 32.9 million in 2025. Along with long-term economic factors, the war with Russia has accelerated Ukraine’s population decline.

The data table below shows the top 24 countries by population decline from 2000 to 2025:

Rank	Country/Territory	Population Decline 2000–2025
1	Ukraine	-32.5%
2	Marshall Islands	-29.4%
3	Bulgaria	-23.2%
4	Latvia	-21.6%
5	Moldova	-18.8%
6	Lithuania	-17.5%
7	Puerto Rico	-16.7%
8	Romania	-16.1%
9	Serbia	-13.1%
10	Albania	-12.8%
11	Croatia	-12.0%
12	Micronesia	-11.2%
13	Georgia	-10.3%
14	North Macedonia	-10.0%
15	Belarus	-9.0%
16	Bosnia and Herzegovina	-8.2%
17	Hungary	-6.5%
18	Palau	-5.3%
19	Poland	-4.6%
20	Greece	-3.7%
21	Armenia	-3.3%
22	Japan	-2.8%
23	Estonia	-1.6%
24	Russia	-0.7%

The pattern is consistent: after EU accession opened borders to higher-wage Western European economies, working-age emigration accelerated. This compounded an already-low birth rate across the region, creating a demographic squeeze that has left many of these countries with aging, shrinking populations.

Puerto Rico (-17%), Romania (-16%), and Serbia (-13%) follow a similar trajectory. Even larger countries like Poland (-5%) and Japan (-3%) saw population declines, though at more modest rates relative to their size. Russia rounds out the list, with its population falling by just under 1% since 2000.

Learn More on the Voronoi App

If you enjoyed today’s post, check out The World’s Largest Countries by Population (2025) on Voronoi.