A value below 2.1 will cause the native population to decline, See also: Countries in the world ranked by Life Expectancy.

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 Km 2 (93 people per mi 2 ), calculated on a total land area of 9,147,420 Km2 (3,531,837 sq.

miles). Blog - Follow us on Twitter - Buy a poster - Contact us by email, © December 2019 by PopulationPyramid.net, made available under a Creative Commons license CC BY 3.0 IGO: http://creativecommons.org/licenses/by/3.0/igo/, Population Pyramids of the World from 1950 to 2100, Less developed regions, excluding least developed countries, Comparison of carbon emissions per country, List of countries ordered by their population size, Origin of the migrants stocks per country, Adolescent fertility rate (births per 1,000 women ages 15-19), Age dependency ratio (% of working-age population), Antiretroviral therapy coverage for PMTCT (% of pregnant women living with HIV), Antiretroviral therapy coverage (% of people living with HIV), Births attended by skilled health staff (% of total), Children with fever receiving antimalarial drugs (% of children under age 5 with fever), Completeness of death registration with cause-of-death information (%), Diabetes prevalence (% of population ages 20 to 79), Diarrhea treatment (% of children under 5 receiving oral rehydration and continued feeding), GNI per capita, Atlas method (current US$), Health expenditure per capita (current US$), Immunization, BCG (% of one-year-old children) - Turberculosis, Immunization, DPT (% of children ages 12-23 months) - Diphtheria, pertussis (whooping cough), and Tetanus, Immunization, HepB3 (% of one-year-old children) - Hepatitis B, Immunization, Hib3 (% of children ages 12-23 months) - Meningitis, Pneumonia, and Epiglottitis, Immunization, measles (% of children ages 12-23 months), Immunization, Polio (% of one-year-old children), Incidence of HIV (% of uninfected population ages 15-49), Incidence of malaria (per 1,000 population at risk), Incidence of tuberculosis (per 100,000 people), Labor force, female (% of total labor force), Literacy rate, adult female (% of females ages 15 and above), Literacy rate, adult total (% of people ages 15 and above), Literacy rate, youth male (% of males ages 15-24), People practicing open defecation, urban (% of urban population), Population ages 65 and above (% of total), Prevalence of HIV, total (% of population ages 15-49), Prevalence of overweight, female (% of female adults), Prevalence of overweight, male (% of male adults), Prevalence of overweight (% of children under 5), Prevalence of syphilis (% of women attending antenatal care), Public spending on education, total (% of GDP), Risk of impoverishing expenditure for surgical care (% of people at risk), School enrollment, secondary, male (% net), Sex ratio at birth (male births per female births), Smoking prevalence, females (% of adults), Suicide mortality rate (per 100,000 population), Tuberculosis death rate (per 100,000 people), Unemployment, total (% of total labor force), http://creativecommons.org/licenses/by/3.0/igo/. Population: 329,064,916. View live population, charts & trends: Population of the United States, 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. 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. Sources - What is a population pyramid? United States of America - 2019. 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. A Population pyramid (also called "Age-Sex Pyramid") is a graphical representation of the age and sex of a population. miles). (life expectancy at birth, both sexes combined), © Copyright Worldometers.info - All rights reserved -, Countries in the world ranked by Life Expectancy, GDP (Gross Domestic Product) of the United States, World Population Prospects: The 2019 Revision, World Urbanization Prospects - Population Division, Organisation for Economic Co-operation and Development (OECD). 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. NOTE: Dependency Ratio does not take into account labor force participation rates by age group. Youth Dependency Ratio Definition: population ages 0-15 divided by the population ages 16-64. There are three types of age dependency ratio: Youth, Elderly, and Total. - Keywords: demography, population pyramid, age pyramid, aging, retirement, WORLD, 2019. Formula: (([Population ages 0-15] + [Population ages 65-plus]) ÷ [Population ages 16-64]) × 100. Population Pyramids: WORLD - 2019. 1950 1955 1960 1965 1970 1975 1980 1985 1990 1995 2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050 2055 2060 2065 2070 2075 2080 2085 2090 2095 2100 329,064,917 Population.

All three ratios are commonly multiplied by 100. ... Trinidad and Tobago Tunisia Turkey Turkmenistan Uganda Ukraine United Arab Emirates United Kingdom United Republic of Tanzania United States of America United States Virgin Islands Uruguay Uzbekistan Vanuatu Venezuela ... demography, population pyramid, age pyramid, aging, retirement, WORLD, 2019.

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