Demographics

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: US Census Bureau Age and Sex Composition

2010

Breakdown by percent of population. Total population in 2010 was ~310 million people.

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%

2000

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

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%