As of May 2026, the population of the United States is 345.1 million. The number of inhabitants has increased by 2 million in the last year, representing a growth of 0.51%. The median age of the population has increased in recent years, rising from 36.7 years in 2016 to 38.8 years in 2026. Currently, life expectancy at birth is 80.2 years and population density is 37.8 inhabitants per square kilometer.
The population growth rate of the United States peaked in 1958, reaching around 2.08% annually, but has since declined to approximately 0.51% in 2026. The annual increase in the number of people has also decreased from a peak of around 3.71 million in 1992 to nearly 1.75 million in 2026.
In the United States, life expectancy at birth has been increasing, with the indicator rising from 77.8 years in 2006 to 80.2 years in 2026, representing an increase of more than 2 years over the past 2 decades.
The United States has multiple large cities with a significant number of inhabitants. The most populous city is New York City, New York, con una diferencia significativa sobre las demás, alcanzando approximately 8.8 million inhabitants. It is followed by Los Angeles, California with 3.8 million and Brooklyn, New York with 2.7 million.
These are the 20 most populous cities in the United States:
| # | City | Population |
|---|---|---|
| 1 | New York City, New York | 8,804,190 |
| 2 | Los Angeles, California | 3,820,914 |
| 3 | Brooklyn, New York | 2,736,074 |
| 4 | Chicago, Illinois | 2,664,452 |
| 5 | Queens, New York | 2,316,841 |
| 6 | Houston, Texas | 2,314,157 |
| 7 | Phoenix, Arizona | 1,650,070 |
| 8 | Philadelphia, Pennsylvania | 1,573,916 |
| 9 | San Antonio, Texas | 1,526,656 |
| 10 | Manhattan, New York | 1,487,536 |
| # | City | Population |
|---|---|---|
| 11 | San Diego, California | 1,404,452 |
| 12 | The Bronx, New York | 1,385,108 |
| 13 | Dallas, Texas | 1,326,087 |
| 14 | Jacksonville, Florida | 1,009,833 |
| 15 | Fort Worth, Texas | 1,008,106 |
| 16 | San Jose, California | 997,368 |
| 17 | Austin, Texas | 974,447 |
| 18 | Columbus, Ohio | 913,175 |
| 19 | Charlotte, North Carolina | 911,311 |
| 20 | Indianapolis, Indiana | 887,642 |