United States Demographics

Population of the United States (2019)

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

U.S. Population
329,064,917
Yearly Change
+ 0.60%
Global Share
4.27%
Global Rank

Population Pyramid for the U.S.A.

A Population Pyramid is a pair of histograms indicating the distribution of the population among the different age groups and sexes (males on the left and females on the right). The shape of a Population Pyramid can help understand growth patterns and possible dependency issues or gender imbalances. A pyramid with a wide base and narrow top suggests high fertility and a growing population, whereas a pyramid with a narrow base suggests an ageing population with low fertility rates. Compare pyramids over time from 1960 to 2080 (based on United Nations Population projections). More on Population Pyramids.

Sex Ratio in the United States (2020)

Females
50.5%
(167,216,631)
Males
49.5%
(163,786,016)
group Sex Ratio
0.98
(Males to Females)

Population by Broad Age Groups (2020)

Age Group Males Male % Females Female % Total Age Group Population
Age Group's share of total pop.
0-14 31,078,969 51.11% 29,732,002 48.89% 60,810,971 18.37%
15-24 22,157,053 50.93% 21,344,600 49.07% 43,501,653 13.14%
25-54 65,113,056 50.31% 64,316,748 49.69% 129,429,804 39.10%
55-64 20,751,951 49.16% 21,459,462 50.84% 42,211,413 12.75%
65+ 24,684,987 44.84% 30,363,819 55.16% 55,048,806 16.63%

U.S.A. Age Structure and Sex Ratio (2020)

Age Group Males Male % Females Female % Age Group Population
Age Group's share of total population
0-4 10,055,063 51.10% 9,621,269 48.90% 19,676,332 5.94%
5-9 10,246,393 51.12% 9,798,759 48.88% 20,045,152 6.06%
10-14 10,777,513 51.10% 10,311,974 48.90% 21,089,487 6.37%
15-19 10,834,321 51.00% 10,408,587 49.00% 21,242,908 6.42%
20-24 11,322,732 50.87% 10,936,013 49.13% 22,258,745 6.72%
25-29 12,144,455 50.95% 11,690,875 49.05% 23,835,330 7.20%
30-34 11,702,514 50.76% 11,349,965 49.24% 23,052,479 6.96%
35-39 10,858,871 50.24% 10,756,920 49.76% 21,615,791 6.53%
40-44 10,118,582 49.86% 10,176,017 50.14% 20,294,599 6.13%
45-49 9,969,099 49.71% 10,084,699 50.29% 20,053,798 6.06%
50-54 10,319,535 50.15% 10,258,272 49.85% 20,577,807 6.22%
55-59 10,702,065 49.68% 10,840,205 50.32% 21,542,270 6.51%
60-64 10,049,886 48.62% 10,619,257 51.38% 20,669,143 6.24%
65-69 8,465,274 47.51% 9,353,753 52.49% 17,819,027 5.38%
70-74 6,645,519 46.29% 7,709,344 53.71% 14,354,863 4.34%
75-79 4,326,986 44.48% 5,400,748 55.52% 9,727,734 2.94%
80-84 2,805,623 43.42% 3,655,579 56.58% 6,461,202 1.95%
85-89 1,538,659 39.34% 2,372,445 60.66% 3,911,104 1.18%
90-94 703,131 34.28% 1,348,005 65.72% 2,051,136 0.62%
95-99 179,003 28.57% 447,633 71.43% 626,636 0.19%
100+ 20,792 21.41% 76,312 78.59% 97,104 0.03%

Median Age

The median age in the United States is 37.7 years (2019).

U.S. Dependency Ratio

The age dependency ratio expresses the relationship between the "dependent population" (ages 0-15 and 65-plus, referred as "youth" and "elderly") and the "working age population" (ages 16-64). Higher values indicate a greater level of dependency. See also: definition and formula.

Age Group Total Age Group Population Share of Total Population Dependency Ratio
Youth (0-14 years old) 60,810,971 18.37% 28.3
Working Age Population (15-64 years) 215,142,870 65.00% N.A.
Elderly (65+ years old) 55,048,806 16.63% 25.6
Total Dependency Ratio
(Youth + Elderly)
115,859,777 35.00% 53.9
Potential Support Ratio
3.91
(number of people of age 15–64 per every 1 person aged 65 or older)

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)
1.8
(Live Births per Woman, 2020)

Life Expectancy in the U.S.A.

See also: Countries in the world ranked by Life Expectancy

Both Sexes
79.1 years
(life expectancy at birth, both sexes combined)
Females
81.7 years
(life expectancy at birth, females)
Males
76.6 years
(life expectancy at birth, males)

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

Infant Mortality
5.5
(infant deaths per 1,000 live births)
Deaths under age 5
7.0
(per 1,000 live births)

United States Urban Population

Currently, 82.5 % of the population of the U.S.A. is urban (271,365,914 people in 2019)

Population Density

The 2019 population density in the United States is 36 people per Km2 (93 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.

# CITY NAME POPULATION
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

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: 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.

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.

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