United States
United States of America
Population: UN WPP 2024, revision 1, projection for 1 July 2026. Sources and methodology.
Geography and territory
The United States ranks among the largest countries on Earth, spanning 9,525,067 square kilometers of extraordinarily varied terrain. Its continental mass stretches from the Atlantic Ocean in the east to the Pacific in the west, bordered by Canada to the north and Mexico to the south, while the state of Alaska occupies the northwestern corner of the continent and the Hawaiian archipelago rises from the central Pacific far offshore. Few countries pack such a range of landscapes, climates, and ecosystems into a single national territory.
The eastern seaboard rises into the ancient, weathered ridges of the Appalachian Mountains, while the interior opens into the Great Plains, a vast expanse of prairie that forms the agricultural backbone of the nation. Farther west, the Rocky Mountains climb past 4,000 meters, and the Cascade Range and Sierra Nevada guard the Pacific coastline. The highest point in the country is Denali in Alaska, towering at 6,190 meters and dominating one of the most remote wilderness regions in North America.
Climate zones shift just as dramatically as the terrain, from the humid subtropical Southeast and the tropical warmth of Florida and Hawaii to the arid stretches of the Mojave Desert and the subarctic cold of interior Alaska. This diversity has produced singular natural treasures: the wetland ecosystem of the Florida Everglades, California’s towering redwood forests, the eroded badlands of South Dakota, and the Grand Canyon in Arizona, one of the most spectacular geological features anywhere on the planet.
History
Long before European contact, the land that would become the United States was home to hundreds of Native American nations who had lived across the continent for millennia, developing societies as varied as the landscapes they inhabited — from the Navajo of the Southwest to the Sioux of the Plains, the Cherokee of the Southeast, and the Iroquois Confederacy of the Northeast. European colonization gathered pace through the seventeenth century, as British, French, Spanish, and Dutch settlers established competing footholds along the coasts.
Thirteen British colonies along the Atlantic seaboard declared their independence on July 4, 1776, launching a war that ended in colonial victory in 1783. The Constitution ratified in 1787, still in force today and among the oldest written national constitutions in the world, established a federal system built on separated powers that has influenced constitutional design across the globe. Through the nineteenth century the young republic expanded relentlessly westward through purchases, annexations, and the ideology of manifest destiny, reshaping the continent and displacing its indigenous peoples in the process.
The Civil War of 1861 to 1865, fought between the Northern and Southern states, remains the deadliest conflict in American history and led to the abolition of slavery, one of the era’s defining achievements. The twentieth century saw the United States rise to global superpower status through its role in both world wars, its leadership of the Western bloc during the Cold War, and its emergence as the world’s foremost economic and military power. The civil rights movement, led by figures such as Martin Luther King Jr., reshaped American society by dismantling legal segregation and expanding the promise of equality.
Culture and society
Often described as a melting pot, American culture reflects the accumulated contributions of the many immigrant communities that built the nation. In music, the country gave rise to jazz, blues, rock and roll, hip hop, country, and soul — genres that reshaped popular music worldwide. New Orleans, Nashville, Memphis, and New York stand as enduring centers of this musical creativity, each associated with a distinct sound and tradition.
Hollywood, in Los Angeles, remains the undisputed heart of the global film industry, from the golden-age studios like MGM, Warner Bros., and Paramount to today’s blockbusters and streaming platforms. American literature has produced towering figures such as Mark Twain, Ernest Hemingway, William Faulkner, and Toni Morrison, several of them Nobel laureates whose work shaped world letters.
Sports occupy a central place in American social life. Football, crowned by the annual spectacle of the Super Bowl, baseball as the country’s traditional pastime, basketball, and ice hockey make up the four major professional leagues, while college athletics, built around a distinctive system of athletic scholarships, form a phenomenon unlike anything found elsewhere in the world. Universities such as Harvard, MIT, Stanford, and Yale rank among the most influential centers of research and higher learning anywhere on Earth.
Religious life in the United States remains notably vibrant compared with much of the industrialized world, and the country’s constitutional separation of church and state has fostered a wide plurality of faiths coexisting within the same communities. Regional identities also run deep, from the genteel traditions of the South to the fast-paced individualism of the Northeast and the outdoor, entrepreneurial culture of the West Coast, giving the nation a patchwork of subcultures held together by shared civic institutions and a common constitutional framework.
Economy
The United States possesses the largest economy in the world, with a gross domestic product of approximately $30.77 trillion, powered by free-market principles and relentless technological innovation. Services dominate output, and Wall Street in New York functions as the global financial center, home to the New York Stock Exchange and the Nasdaq, institutions that set the pace for markets worldwide.
Silicon Valley in California anchors the world’s technology industry, and companies born on American soil — Apple, Google, Microsoft, Amazon, Meta, and Tesla among them — have transformed the global economy. The country leads the world in research and development spending, supported by institutions such as NASA, the National Institutes of Health, and a network of national laboratories driving advances across science and engineering.
American agriculture is remarkably productive, making the country one of the world’s top exporters of corn, soybeans, wheat, and beef. The shale oil and gas boom has turned the United States into the world’s largest producer of petroleum, transforming its energy posture in little more than a decade. Defense, pharmaceuticals, aerospace, and automotive manufacturing round out an economy of extraordinary breadth and global reach.
This economic dynamism rests on a decentralized federal structure in which individual states set much of their own tax, labor, and business policy, creating fifty distinct economic environments within one national market. Immigration has long supplied a steady stream of talent and labor that fuels entrepreneurship, and the country’s deep and liquid capital markets make it comparatively easy for new companies to raise funding and scale quickly, reinforcing a cycle of innovation that few other economies can match.
Food and cuisine
American cuisine mirrors the country’s cultural diversity, with regional traditions that differ enormously from coast to coast. Hamburgers and hot dogs, global symbols of fast food, are only the most visible layer of a far richer culinary landscape. The Deep South contributes soul food — fried chicken, grits, Louisiana gumbo, and slow-smoked ribs from the barbecue tradition, itself a whole culture of its own.
Every region claims its own specialties: Maine lobster, New England clam chowder, the Philadelphia cheesesteak, New York-style pizza, Chicago’s deep-dish pies, Tex-Mex from the Southwest, and California’s fusion cooking. Barbecue itself splinters into rival regional styles — Texas, North Carolina, Kansas City, and Memphis each defend their own rubs, smoking woods, and sauces with fierce local pride.
Contemporary American dining has grown increasingly sophisticated, driven by the farm-to-table movement, a booming specialty coffee culture, and the deepening influence of Asian and Latin American cooking. Cities such as New York, San Francisco, Chicago, and Los Angeles host some of the most acclaimed restaurants on the planet alongside a thriving scene of food trucks and culinary experimentation.
Tourism and landmarks
The United States offers an immense range of destinations, from pulsing metropolises to spectacular wilderness and historic monuments. New York, the city that never sleeps, draws visitors to the Statue of Liberty, Times Square, Central Park, the Empire State Building, and world-class museums like the Met and MoMA. Washington D.C. concentrates the symbols of national power — the White House, the Capitol, the Lincoln Memorial, and the free Smithsonian museums.
The national park system stands among the country’s greatest treasures. The Grand Canyon in Arizona, Yellowstone with its geysers, Yosemite with its waterfalls and giant sequoias, Zion, Bryce Canyon, the Everglades, and Grand Teton offer landscapes of overwhelming beauty. Route 66, which once linked Chicago to Los Angeles, has become an enduring icon of the great American road trip.
Las Vegas dazzles with its desert entertainment scene, while San Francisco charms visitors with the Golden Gate Bridge, its hills, and its bohemian spirit. Orlando’s theme parks, anchored by Walt Disney World and Universal Studios, draw tens of millions of visitors every year. Hawaii offers paradisiacal beaches and active volcanoes, while Alaska astonishes with glaciers, the northern lights, and untamed wilderness on an epic scale.
Fun facts about United States
- Mount Rushmore took 14 years to carve, and the original design called for the four presidents to be shown from the waist up rather than just their faces.
- The United States has no official language at the federal level; English functions as the de facto national language but has never been enshrined as official in the Constitution.
- The Grand Canyon plunges roughly 1,800 meters deep, and its oldest exposed rock layers date back nearly two billion years.
- The Library of Congress in Washington D.C. is the largest library in the world, holding more than 170 million items in its collections.
- Alaska was purchased from Russia in 1867 for just $7.2 million, a deal mocked at the time as “Seward’s Folly” before its vast resources proved the critics wrong.
The United States in numbers
Latest World Bank and UNDP observations, each with its own year. “World median” is the middle value among the countries that report the same indicator; “#” ranks from the highest value.
Population since 1960
The United States had 180.7 million people in 1960 and 341.8 million in 2025 — 89% more.
People
80.2% of people live in towns and cities (world median 63.4%). 17.1% are under 15 and 18.4% are 65 or older — an ageing population. Women have 1.63 children on average, below the replacement level of about 2.1 needed to keep a population stable in the long run without migration.
Economy
The economy grew by 2.2% in real terms in 2025. Consumer prices rose by 2.9% in 2024. Services make up the largest share of output (76.3% of GDP); agriculture contributes 0.9%.
Development and environment
UNDP rates human development in the United States as very high, with an index of 0.938 in 2023 (rank 17 of 193). 94.7% of people use the internet and 100.0% have access to electricity. Forest covers 33.8% of the land (world median 32.8%).
Sources: World Bank, World Development Indicators (CC BY 4.0), most recent observation from 2015 onward; UNDP Human Development Report 2025. Retrieved 2026-10-10. Sector shares need not add up to 100% because taxes and subsidies on products are excluded. Missing values are left blank rather than estimated. Sources and methodology.
Climate of the United States
Averaged across the United States, the warmest month is July (21.7 °C) and the coolest is January (−2.7 °C), a seasonal swing of 24.4 °C. The annual mean is 9.4 °C.
3 months have a national mean temperature below freezing.
About 744 mm of precipitation falls in a typical year. June is the wettest month (73 mm) and February the driest (50 mm). Rain is spread fairly evenly through the year.
Show monthly values as a table
| Month | Mean °C | Low °C | High °C | Precipitation, mm |
|---|---|---|---|---|
| January | −2.7 | −8.2 | 2.9 | 56 |
| February | −0.8 | −6.7 | 5.2 | 50 |
| March | 3.3 | −3.2 | 9.7 | 56 |
| April | 8.6 | 2.0 | 15.4 | 61 |
| May | 14.3 | 7.6 | 21.1 | 69 |
| June | 19.1 | 12.4 | 25.9 | 73 |
| July | 21.7 | 15.0 | 28.5 | 71 |
| August | 20.8 | 14.1 | 27.6 | 70 |
| September | 16.7 | 10.0 | 23.6 | 64 |
| October | 10.1 | 3.6 | 16.6 | 60 |
| November | 3.2 | −2.7 | 9.1 | 54 |
| December | −1.4 | −6.8 | 4.0 | 58 |
Figures are 1991–2020 averages across the whole land area of the United States, from the World Bank Climate Change Knowledge Portal, CRU TS 4.08 (CC BY 4.0). They are not readings from one weather station: the capital, the coast and high ground can be much warmer, cooler, wetter or drier.
Travel essentials for the United States
The practical details visitors ask about first. Traffic in the United States drives on the right, like most of the world. Mains electricity is 120 V at 60 Hz, so appliances built only for 220–240 V need a voltage converter.
- Emergency number
- 911
- Driving side
- Right
- Plug types
- Type A, Type BA: two flat parallel pins; B: two flat pins plus a round earth pin
- Voltage
- 120 V60 Hz
- Dialling code
- +1From abroad: your exit code, then 1 and the number
- Currency
- US Dollar (USD)
- Time zone
- UTC-5 to UTC-10Current local time in the United States
Compiled from IEC plug and voltage standards, national emergency-service listings and the UN road-traffic conventions. Emergency numbers and local coverage can change — confirm them locally on arrival. The United States's internet domain is .us.
Where the United States ranks in the world
Each position counts only the countries with data in that ranking guide. First place is the highest value — for price levels, the most expensive. Select a card to see the full table.
- Population3rd of 196349.0 millionUN projection, July 2026
- Land area3rd of 1959,147,420 km²World Bank, 2023
- Population density146th of 19437 per km²World Bank, 2023
- GDP (nominal)1st of 187$29.30TWorld Bank, 2024, current US$
- GDP per capita8th of 187$86,170World Bank, 2024, current US$
- Life expectancy47th of 19478.9 yearsWorld Bank, 2024
- Price level12th of 165100 (US = 100)ICP 2021, household consumption
Bordering countries of the United States
Compare the United States with another country
Frequently asked questions about the United States
What is the capital of the United States?
The capital of the United States is Washington D.C..
What is the population of the United States?
The UN World Population Prospects projection for the United States is 349,035,494 people (349.0 million) on 1 July 2026. National statistical offices may publish different estimates.
What language is spoken in the United States?
The official language of the United States is English.
What currency is used in the United States?
The currency of the United States is the US Dollar (USD).
How big is the United States?
The United States covers an area of 9,525,067 km².
What type of government does the United States have?
The United States is a federal presidential republic.
Which countries border the United States?
The United States shares land borders with Canada, Mexico.
What is the highest point in the United States?
The highest point in the United States is Denali (6,190 m).