U.S. Population by Sex and Age

Updated August 5, 2020 | Infoplease Staff

Profile of General Demographic Characteristics, Census 2000 and Census 2010

Here is a look at the U.S. population, based on the 2000 and 2010 U.S. Census. Figures are broken down by sex and age. Find more population statistics classified by general demographic characteristics by clicking the links below.

Population by Race | Hispanic Population | Population by Relationship |
Household by Type | Household Occupancy | Owners vs. Renters



Sex and age Number, 2000 Percent Number, 2010 Percent
Total population 281,421,906 100.0% 308,745,538 100.0%
Male 138,053,563 49.1 151,781,326 49.2
Female 143,368,343 50.9 156,964,212 50.8
Under 5 years 19,175,798 6.8 20,201,362 6.5
5 to 9 years 20,549,505 7.3 20,348,657 6.6
10 to 14 years 20,528,072 7.3 20,677,194 6.7
15 to 19 years 20,219,890 7.2 22,040,343 7.1
20 to 24 years 18,964,001 6.7 21,585,999 7.0
25 to 34 years 39,891,724 14.2 41,063,948 13.3
35 to 44 years 45,148,527 16.0 41,070,606 13.3
45 to 54 years 37,677,952 13.4 45,006,716 14.6
55 to 59 years 13,469,237 4.8 19,664,805 6.4
60 to 64 years 10,805,447 3.8 16,817,924 5.4
65 to 74 years 18,390,986 6.5 21,713,429 7.0
75 to 84 years 12,361,180 4.4 13,061,122 4.2
85 years and over 4,239,587 1.5 5,493,433 1.8
Median age (years) 35.3 n.a. 37.2 n.a.
18 years and over 209,128,094 74.3 234,564,071 76.0
21 years and over 196,899,193 70.0 220,958,853 71.6
62 years and over 41,256,029 14.7 49,972,181 16.2
65 years and over 34,991,753 12.4 40,267,984 13.0
NOTES: (—) represents zero or rounds to zero; n.a. = not applicable.
Source: U.S. Census Bureau, Census 2000 and Census 2010. Web: www.census.gov .

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