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=United States Census=
=United States Census=


Source: [https://www.census.gov/prod/cen2010/briefs/c2010br-03.pdf US Census Bureau Age and Sex Composition]
Source for year 2000/2010 data: https://www.census.gov/prod/cen2010/briefs/c2010br-03.pdf
 
Source for year 2016 data: https://www.census.gov/quickfacts/fact/table/US/PST045216


==Year 2016==
==Year 2016==


Source: https://www.census.gov/quickfacts/fact/table/US/PST045216
Total population in 2016 was ~323 million people.
 
Breakdowns below are by percent of population.
 
===Gender===
 
Breakdown by gender:
* Males: 49.2%
* Females: 50.8%
 
===Age===


Total population in 2016 was ~323 million people.
Breakdown by age:
* Under 18: 24%
* 18 to 44, plus 45 to 64 (no intermediate breakdown): 62%
* 65 and up: 15.2%


Breaking that down just a bit further:


Under 18 crowd:
* Under 5 years old: 6%
* 5 to 17 years old: 17%


==Year 2010==
==Year 2010==
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==Year 2000==
==Year 2000==


Breakdown by percent of population. Total population in 2010 was ~280 million people.
Total population in 2010 was ~280 million people.
 
Breakdowns below are by percent of population.


===Gender===
===Gender===

Revision as of 00:54, 15 August 2017

Back of the Envelope

US population in 2010 was 308.7 million people

Slightly more females than males (males 49% and change, females 51% and change)

Percent of people in the United States who are under 5: around 7%

Percent of people in the United States who are under 18: around 25%

Percent of people in the United States who are "adults" approaching/at middle age (18-44): around 40%

Percent of people in the United States who are older, but not elderly (45-64): around 20%

Percent of people in the United States who are elderly (65+): around 15%

Growth rate of 65+ is higher (20% in past 10 years) than any other age groups (roughly 12% each in past 10 years)

United States Census

Source for year 2000/2010 data: https://www.census.gov/prod/cen2010/briefs/c2010br-03.pdf

Source for year 2016 data: https://www.census.gov/quickfacts/fact/table/US/PST045216

Year 2016

Total population in 2016 was ~323 million people.

Breakdowns below are by percent of population.

Gender

Breakdown by gender:

  • Males: 49.2%
  • Females: 50.8%

Age

Breakdown by age:

  • Under 18: 24%
  • 18 to 44, plus 45 to 64 (no intermediate breakdown): 62%
  • 65 and up: 15.2%

Breaking that down just a bit further:

Under 18 crowd:

  • Under 5 years old: 6%
  • 5 to 17 years old: 17%

Year 2010

Total population in 2010 was ~310 million people.

Breakdowns below are by percent of population.

Gender

Breakdown by gender:

  • Males: 49.2%
  • Females: 50.8 %

Age

Breakdown by age:

  • Under 18: 24%
  • 18 to 44: 35%
  • 45 to 64: 26%
  • 65 and up: 13%

Breaking that down just a bit further:

Under 18 crowd:

  • Under 5 years old: 6.5% (still, about 7%)
  • 5 to 17 years old: 18%

18 to 44 crowd:

  • 18 to 24 years old: 10%
  • 25 to 44 years old: 26%

Year 2000

Total population in 2010 was ~280 million people.

Breakdowns below are by percent of population.

Gender

Breakdown by gender:

  • Males: 49.1%
  • Females: 50.9 %

Age

Breakdown by age:

  • Under 18: 26%
  • 18 to 44: 40%
  • 45 to 64: 22%
  • 65 and up: 12%

Breaking that down just a bit further:

Under 18 crowd:

  • Under 5 years old: 7%
  • 5 to 17 years old: 19%

18 to 44 crowd:

  • 18 to 24 years old: 10%
  • 25 to 44 years old: 30%