| Population | 323,995,528 (July 2016 est.) |
| Age structure | 0-14 years: 18.84% (male 31,182,660/female 29,854,687) 15-24 years: 13.46% (male 22,360,342/female 21,252,215) 25-54 years: 39.6% (male 64,170,791/female 64,135,619) 55-64 years: 12.85% (male 20,081,837/female 21,536,994) 65 years and over: 15.25% (male 21,895,128/female 27,525,255) (2016 est.) |
| Dependency ratios | total dependency ratio: 50.9 youth dependency ratio: 28.6 elderly dependency ratio: 22.3 potential support ratio: 4.5 (2015 est.) |
| Median age | total: 37.9 years male: 36.6 years female: 39.3 years (2016 est.) |
| Population growth rate | 0.81% (2016 est.) |
| Birth rate | 12.5 births/1,000 population (2016 est.) |
| Death rate | 8.2 deaths/1,000 population (2016 est.) |
| Net migration rate | 3.9 migrant(s)/1,000 population (2016 est.) |
| Urbanization | urban population: 81.6% of total population (2015) rate of urbanization: 1.02% annual rate of change (2010-15 est.) |
| Major cities - population | New York-Newark 18.593 million; Los Angeles-Long Beach-Santa Ana 12.31 million; Chicago 8.745 million; Miami 5.817 million; Dallas-Fort Worth 5.703 million; WASHINGTON, D.C. (capital) 4.955 million (2015) |
| Sex ratio | at birth: NA 0-14 years: 1.04 male(s)/female 15-24 years: 1.05 male(s)/female 25-54 years: 1 male(s)/female 55-64 years: 0.93 male(s)/female 65 years and over: 0.79 male(s)/female total population: 0.97 male(s)/female (2016 est.) |
| Mother's mean age at first birth | 25.6 years (2011 est.) |
| Infant mortality rate | total: 5.8 deaths/1,000 live births male: 6.3 deaths/1,000 live births female: 5.3 deaths/1,000 live births (2016 est.) |
| Life expectancy at birth | total population: 79.8 years male: 77.5 years female: 82.1 years (2016 est.) |
| Total fertility rate | 1.87 children born/woman (2016 est.) |
| Contraceptive prevalence rate | 74.1% note: percent of women aged 15-44 (2011/13) |
| HIV/AIDS - adult prevalence rate | NA |
| HIV/AIDS - people living with HIV/AIDS | NA |
| HIV/AIDS - deaths | NA |
| Drinking water source | improved: urban: 99.4% of population rural: 98.2% of population total: 99.2% of population unimproved: urban: 0.6% of population rural: 1.8% of population total: 0.8% of population (2015 est.) |
| Sanitation facility access | improved: urban: 100% of population rural: 100% of population total: 100% of population unimproved: urban: 0% of population rural: 0% of population total: 0% of population (2015 est.) |
| Nationality | noun: American(s) adjective: American |
| Ethnic groups | white 79.96%, black 12.85%, Asian 4.43%, Amerindian and Alaska native 0.97%, native Hawaiian and other Pacific islander 0.18%, two or more races 1.61% (July 2007 estimate) note: a separate listing for Hispanic is not included because the US Census Bureau considers Hispanic to mean persons of Spanish/Hispanic/Latino origin including those of Mexican, Cuban, Puerto Rican, Dominican Republic, Spanish, and Central or South American origin living in the US who may be of any race or ethnic group (white, black, Asian, etc.); about 15.1% of the total US population is Hispanic |
| Religions | Protestant 46.5%, Roman Catholic 20.8%, Mormon 1.6%, Jehovah's Witness 0.8%, other Christian 0.9%, Jewish 1.9%, Muslim 0.9%, Buddhist 0.7%, Hindu 0.7%, other 1.8%, unaffiliated 22.8%, don't know/refused 0.6% (2014 est.) |
| Languages | English 79.2%, Spanish 12.9%, other Indo-European 3.8%, Asian and Pacific island 3.3%, other 0.9% (2011 est.) note: data represent the language spoken at home; the US has no official national language, but English has acquired official status in 31 of the 50 states; Hawaiian is an official language in the state of Hawaii |
| School life expectancy (primary to tertiary education) | total: 17 years male: 16 years female: 17 years (2014) |
| Education expenditures | 4.9% of GDP (2013) |
| Maternal mortality rate | 14 deaths/100,000 live births (2015 est.) |
| Children under the age of 5 years underweight | 0.5% (2012) |
| Health expenditures | 17.1% of GDP (2014) |
| Physicians density | 2.55 physicians/1,000 population (2013) |
| Hospital bed density | 2.9 beds/1,000 population (2011) |
| Obesity - adult prevalence rate | 35% (2014) |
Source: CIA World Factbook
This page was last updated on July 9, 2017
