United States Demographics

Population of the United States (2023)

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

U.S. Population
Yearly Change
+ 0.50%
Global Share
Global Rank

Median Age

The median age in the United States is 38.1 years (2023).

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

pregnant_woman Total Fertiliy Rate (TFR)
(Live Births per Woman, 2023)

Life Expectancy in the U.S.A.

See also: Countries in the world ranked by Life Expectancy

Both Sexes
79.7 years
(life expectancy at birth, both sexes combined)
82.2 years
(life expectancy at birth, females)
77.3 years
(life expectancy at birth, males)

Infant Mortality Rate and Deaths of Children under 5 Years Old in the U.S.A.

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

United States Urban Population

Currently, 82.9 % of the population of the U.S.A. is urban (281,984,165 people in 2023)

Population Density

The 2023 population density in the United States is 37 people per Km2 (96 people per mi2), calculated on a total land area of 9,147,420 Km2 (3,531,837 sq. miles).

Largest Cities in the U.S.A.

1 New York City 8,175,133
2 Los Angeles 3,971,883
3 Chicago 2,720,546
4 Brooklyn 2,300,664
5 Houston 2,296,224
6 Queens 2,272,771
7 Philadelphia 1,567,442
8 Phoenix 1,563,025
9 Manhattan 1,487,536
10 San Antonio 1,469,845
11 San Diego 1,394,928
12 The Bronx 1,385,108
13 Dallas 1,300,092
14 San Jose 1,026,908
15 Austin 931,830
16 Jacksonville 868,031
17 San Francisco 864,816
18 Columbus 850,106
19 Fort Worth 833,319
20 Indianapolis 829,718
21 Charlotte 827,097
22 Seattle 684,451
23 Denver 682,545
24 El Paso 681,124
25 Detroit 677,116
26 Boston 667,137
27 Memphis 655,770
28 New South Memphis 641,608
29 Portland 632,309
30 Oklahoma City 631,346

See also



Population Pyramid

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


  • 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: Nigera 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.



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.