Population CO2 emissions Coronavirus Countries Energy Flags Food & Agriculture GDP by country Time Unit Converters Water World Map

Flag of United States
United States Demographics

Population of the United States (2026)

View live population, charts & trends: Population of the United States

U.S. Population
349,035,494
see live
Yearly Change
+0.51%
Global Share
4.2%
Global Rank
3

Median Age

The median age in the United States is 38.7 years (2026).

Fertility in the U.S.A.

A Total Fertility Rate (TFR) of 2.1 represents the Replacement-Level Fertility: the average number of children per woman needed for each generation to exactly replace itself without needing international immigration. A value below 2.1 will cause the native population to decline


Total Fertility Rate (TFR)
1.6
(Live Births per Woman, 2026)

Life Expectancy in the U.S.A.

See also: Countries in the world ranked by Life Expectancy

Both Sexes
79.8
(life expectancy at birth, both sexes combined)
Females
82.2
(life expectancy at birth, females)
Males
77.4
(life expectancy at birth, males)


Infant Mortality Rate and Deaths of Children under 5 Years Old in the United States


Infant Mortality
4.7
(infant deaths per 1,000 live births)
Deaths under age 5
5.6
(per 1,000 live births)


United States Urban Population

Currently, 83.1% of the population of the United States is urban (290,150,111 people in 2026)


Population Density

The 2026 population density in the United States is 38 people per Km2 (99 people per mi2), calculated on a total land area of 9,147,420 Km2 (3,531,837 sq. miles).

Largest cities by Population in the U.S.A.

(includes boroughs, districts, urban agglomerations, etc.)

Rank Urban Area Population Estimate (2025)
1 New York City 13,920,148
2 Los Angeles 12,740,420
3 Houston 3,955,046
4 Chicago 3,683,385
5 Washington, D.C. 3,270,018
6 San Francisco 3,163,486
7 Miami 2,912,486
8 Denver 2,265,994
9 Philadelphia 2,232,420
10 Las Vegas 2,183,655
11 Phoenix 1,972,021
12 San Diego 1,915,114
13 San Antonio 1,686,163
14 Boston 1,639,797
15 Dallas 1,521,118
16 Sacramento 1,514,661
17 Austin 1,513,032
18 Oakland 1,503,319
19 Seattle 1,403,495
20 Mesa 1,398,369
21 Portland 1,397,788
22 Fort Lauderdale 1,368,027
23 Baltimore 1,145,219
24 Minneapolis [Saint Paul] 1,107,243
25 Saint Petersburg 877,183
26 Detroit 809,894
27 Columbus 731,335
28 Milwaukee 701,928
29 Fresno 685,330
30 St. Louis 663,392
More info

See also

Sources

Definitions

Population Pyramid

A Population pyramid (also called "Age-Sex Pyramid") is a graphical representation of the age and sex of a population.

Types:

  • Expansive - pyramid with a wide base (larger percentage of people in younger age groups, indicating high birth rates and high fertility rates) and narrow top (high death rate and lower life expectancies). It suggests a growing population. Example: Nigeria Population Pyramid
  • Constrictive - pyramid with a narrow base (lower percentage of younger people, indicating declining birth rates with each succeeding age group getting smaller than the previous one). Example: United States
  • Stationary - with a somewhat equal proportion of the population in each age group. The population is stable, neither increasing nor decreasing.

Stages:

Population pyramid stages

Dependency Ratio

There are three types of age dependency ratio: Youth, Elderly, and Total. All three ratios are commonly multiplied by 100.

Youth Dependency Ratio

Definition: population ages 0-15 divided by the population ages 16-64.

Formula: ([Population ages 0-15] ÷ [Population ages 16-64]) × 100

Elderly dependency ratio

Definition: population ages 65-plus divided by the population ages 16-64.

Formula: ([Population ages 65-plus] ÷ [Population ages 16-64]) × 100

Total dependency ratio

Definition: sum of the youth and old-age ratios.

Formula: (([Population ages 0-15] + [Population ages 65-plus]) ÷ [Population ages 16-64]) × 100

NOTE: Dependency Ratio does not take into account labor force participation rates by age group. Some portion of the population counted as "working age" may actually be unemployed or not in the labor force whereas some portion of the "dependent" population may be employed and not necessarily economically dependent.