The largest city in the United States is New York City, with roughly 8.3 million residents, followed by Los Angeles (3.9 million), Chicago (2.7 million), Houston (2.3 million), Phoenix (1.6 million), Philadelphia (1.6 million), San Antonio (1.5 million), San Diego (1.4 million), Dallas (1.3 million), and Jacksonville (0.9 million). These ten cities form the urban backbone of a nation of roughly 331 million people, spread across coasts, deserts, and the industrial heartland.
The Ten Largest US Cities Ranked
City rankings in the United States use municipal (city-proper) populations rather than wider metropolitan areas, which is why a sprawling metro like Los Angeles still trails New York. Here is the established order:
- New York City, New York — about 8.3 million
- Los Angeles, California — about 3.9 million
- Chicago, Illinois — about 2.7 million
- Houston, Texas — about 2.3 million
- Phoenix, Arizona — about 1.6 million
- Philadelphia, Pennsylvania — about 1.6 million
- San Antonio, Texas — about 1.5 million
- San Diego, California — about 1.4 million
- Dallas, Texas — about 1.3 million
- Jacksonville, Florida — about 0.9 million
One striking detail is how dominant the top three are: New York alone holds more people than the next two cities combined, and it counts more residents than 40 of the 50 US states.
The Sun Belt Reshapes the Map
Perhaps the most important trend in this list is the rise of the Sun Belt. Four of the ten largest cities — Houston, San Antonio, Dallas, and Phoenix — sit in Texas and Arizona, regions that barely registered nationally a century ago. Texas is especially prominent, placing three cities in the top ten, more than any other state.
These cities grew quickly thanks to warm climates, lower living costs, expansive land for development, and booming energy, technology, and logistics industries. Phoenix, in particular, has been one of the fastest-growing major US cities, expanding across the Sonoran Desert as air conditioning and water engineering made large-scale settlement possible.
How These Cities Differ
The ten largest cities reflect dramatically different histories and economies:
- New York City is the financial and cultural capital of the country, home to Wall Street, the United Nations, and a port that processed millions of immigrants through Ellis Island.
- Los Angeles anchors the global entertainment industry and serves as a gateway for Pacific trade.
- Chicago grew on rail, grain, and meatpacking and remains the transportation hub of the Midwest.
- Houston is the energy capital of the United States and home to NASA's Johnson Space Center.
- Philadelphia is one of the oldest major cities, where the Declaration of Independence and Constitution were signed.
- San Diego combines a major naval presence with biotech and tourism along the Pacific coast.
City Limits Versus Metro Areas
It is worth understanding why this list can feel counterintuitive. Population figures here measure people living inside official city boundaries. By metropolitan area — counting suburbs and surrounding counties — the picture shifts. The New York metro tops 19 million, while Los Angeles and Chicago anchor metros of roughly 13 million and 9 million respectively. Some cities with modest city-proper counts, like Washington, D.C., Miami, or Boston, sit at the center of enormous metro regions that do not appear on a city-proper list.
Land area also distorts comparisons. Jacksonville ranks tenth in population but is one of the largest US cities by land area, having merged with its surrounding county. Dense New York packs its millions into a fraction of that space, which is why it feels far more crowded.
A Snapshot of Urban America
Together the top ten cities illustrate how Americans live: clustered on the Atlantic and Pacific coasts, anchored in the Great Lakes industrial belt, and increasingly drawn to the warm, fast-growing South and Southwest. More than 80 percent of the US population now lives in urban areas, and these metropolises drive an outsized share of national output, innovation, and immigration. For more background on the country itself, see our united states country guide.
City Limits Decide the Ranking
The single biggest source of confusion in American city rankings is that they measure incorporated city limits, not the places people actually recognise. Those boundaries are the product of state annexation law, and they vary enormously.
Jacksonville consolidated with Duval County in 1968 and covers roughly 2,260 square kilometres, which is why a city most Americans would not name in their top twenty sits comfortably in the top fifteen by population. Phoenix, Houston and San Antonio all annexed aggressively through the twentieth century because Texas and Arizona law made it easy.
Boston, by contrast, is hemmed in by incorporated suburbs that cannot be absorbed, so its city figure of roughly 650,000 badly understates a metropolitan area of nearly five million. Move to metro figures and the ranking rearranges: New York, Los Angeles and Chicago hold the top three, but Dallas-Fort Worth and Washington both leap ahead of Phoenix and Philadelphia.
The Sun Belt Took the Growth
The long demographic story of the past seventy years is the movement of people and jobs from the industrial Northeast and Midwest to the South and Southwest. Air conditioning made the climate tolerable, land was cheap, taxes were lower and unions were weaker.
The effect on this list is stark. Detroit held about 1.85 million people in 1950 and roughly a third of that now, the steepest decline of any large American city. St Louis, Cleveland, Buffalo and Pittsburgh all shrank by comparable proportions.
Meanwhile Phoenix went from a town of 107,000 in 1950 to the fifth-largest city in the country, and Houston, San Antonio, Austin, Fort Worth and Charlotte all climbed the table. Texas alone now holds three of the top ten, which would have seemed implausible at mid-century.
New York Is a Different Kind of City
New York is not merely first, it is first by a factor of more than two over Los Angeles, and it is the only American city that is genuinely dense by international standards. Manhattan runs above 27,000 people per square kilometre, a figure with no domestic parallel.
That density is what supports the subway, which carries billions of rides a year and is the only American transit system on which a large share of a city's population depends daily. Roughly half of New York households own no car, a proportion unmatched anywhere else in the country.
The five boroughs were consolidated into a single city in 1898. Before that, Brooklyn was an independent municipality and the fourth-largest city in the United States in its own right, which is the reason its civic institutions, its newspaper and its bridge all predate its absorption.
Los Angeles Grew Around Water It Had to Steal
Los Angeles sits in a semi-arid basin that could never have supported its population on local supply. The Los Angeles Aqueduct, completed in 1913 under William Mulholland, brought water more than 350 kilometres from the Owens Valley, draining Owens Lake and destroying the farming economy there.
The episode is the loose basis for the film Chinatown, and the Owens lakebed became for a period the largest single source of particulate dust pollution in the United States. Later diversions from the Colorado River and Northern California added supply, and all of it is now under pressure from sustained drought in the basin.
The city's shape follows from that history and from the freeway network built over it. Los Angeles sprawls across a basin ringed by mountains, which also traps the air and gave the city its smog, a problem attacked since the 1970s with the strictest vehicle emissions rules in the country.
Chicago and the River That Was Reversed
Chicago grew because of its position at the base of Lake Michigan, where the Great Lakes shipping system met the railways heading west. By 1890 it was the second-largest city in the country and the hinge of American commerce, handling grain, lumber and the stockyards that Upton Sinclair wrote about.
Its most remarkable engineering decision came in 1900, when the flow of the Chicago River was permanently reversed so that the city's sewage would run towards the Mississippi basin rather than into the lake it drank from. The Sanitary and Ship Canal is still doing it.
The Great Fire of 1871 destroyed much of the centre and cleared the ground on which the first steel-framed skyscrapers were built, which is why Chicago rather than New York is usually credited with inventing the form.
Common Questions About America's Largest Cities
What is the largest city in the United States?
New York City is the largest, with approximately 8.3 million residents within its five boroughs. Its surrounding metropolitan area is home to more than 19 million people.
Is Washington, D.C. one of the ten largest US cities?
No. Despite being the national capital, Washington, D.C. has a city-proper population of around 700,000, placing it outside the top ten by city population, though its metro area is much larger.
Which state has the most cities in the top ten?
Texas leads with three: Houston, San Antonio, and Dallas. California follows with two, Los Angeles and San Diego.
Why does Los Angeles rank below New York if its metro is so big?
These rankings count residents within official city limits, not the broader metro. New York City's boundaries enclose far more people than the City of Los Angeles, even though Southern California's overall metro region is vast.
Why is Los Angeles County bigger than most states?
Los Angeles County holds close to ten million people, more than forty of the fifty states, and includes 88 incorporated cities of which Los Angeles is only the largest. County and city figures are frequently confused in rankings.