| Age | 1950 | 1951 | 1952 | 1953 | 1954 | 1955 | 1956 | 1957 | 1958 | 1959 | 1960 | 1961 | 1962 | 1963 | 1964 | 1965 | 1966 | 1967 | 1968 | 1969 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Percentage of total population | ||||||||||||||||||||
| Ages 0–17 | 31.0 | 32.0 | 32.0 | 33.0 | 33.0 | 34.0 | 34.0 | 35.0 | 35.0 | 35.0 | 36.0 | 36.0 | 36.0 | 36.0 | 36.0 | 36.0 | 36.0 | 35.0 | 35.0 | 35.0 |
| Ages 18–64 | 61.0 | 60.0 | 60.0 | 59.0 | 58.0 | 58.0 | 57.0 | 56.0 | 56.0 | 55.0 | 55.0 | 55.0 | 54.0 | 54.0 | 54.0 | 54.0 | 55.0 | 55.0 | 55.0 | 56.0 |
| Ages 65 and older | 8.0 | 8.0 | 8.0 | 9.0 | 9.0 | 9.0 | 9.0 | 9.0 | 9.0 | 9.0 | 9.0 | 9.0 | 9.0 | 9.0 | 9.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 |
| Children ages 0–17 as a percentage of the dependent populationa | ||||||||||||||||||||
| Ages 0–17 | 79.0 | 79.0 | 79.0 | 79.0 | 79.0 | 79.0 | 79.0 | 79.0 | 80.0 | 80.0 | 79.0 | 79.0 | 79.0 | 79.0 | 79.0 | 79.0 | 79.0 | 79.0 | 78.0 | 78.0 |
| Age | 1970 | 1971 | 1972 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 | 1983 | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 |
| Percentage of total population | ||||||||||||||||||||
| Ages 0–17 | 34.0 | 34.0 | 33.0 | 33.0 | 32.0 | 31.0 | 30.0 | 30.0 | 29.0 | 29.0 | 28.0 | 28.0 | 27.0 | 26.0 | 26.0 | 26.0 | 26.0 | 26.0 | 26.0 | 26.0 |
| Ages 18–64 | 56.0 | 56.0 | 57.0 | 57.0 | 58.0 | 58.0 | 59.0 | 59.0 | 60.0 | 60.0 | 61.0 | 61.0 | 61.0 | 62.0 | 62.0 | 62.0 | 62.0 | 62.0 | 62.0 | 62.0 |
| Ages 65 and older | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Children ages 0–17 as a percentage of the dependent populationa | ||||||||||||||||||||
| Ages 0–17 | 78.0 | 77.0 | 77.0 | 76.0 | 76.0 | 75.0 | 74.0 | 73.0 | 73.0 | 72.0 | 71.0 | 71.0 | 70.0 | 70.0 | 69.0 | 69.0 | 68.0 | 68.0 | 68.0 | 67.0 |
| Age | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 |
| Percentage of total population | ||||||||||||||||||||
| Ages 0–17 | 26.0 | 26.0 | 26.0 | 26.0 | 26.0 | 26.0 | 26.0 | 26.0 | 26.0 | 26.0 | 25.7 | 25.5 | 25.4 | 25.2 | 25.1 | 24.9 | 24.8 | 24.7 | 24.5 | 24.3 |
| Ages 18–64 | 62.0 | 62.0 | 62.0 | 61.0 | 61.0 | 61.0 | 61.0 | 61.0 | 62.0 | 62.0 | 61.9 | 62.1 | 62.3 | 62.4 | 62.5 | 62.7 | 62.8 | 62.8 | 62.8 | 62.8 |
| Ages 65 and older | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.5 | 12.6 | 12.7 | 12.9 |
| Children ages 0–17 as a percentage of the dependent populationa | ||||||||||||||||||||
| Ages 0–17 | 67.0 | 67.0 | 67.0 | 67.0 | 67.0 | 67.0 | 67.0 | 67.0 | 67.0 | 67.0 | 67.4 | 67.3 | 67.3 | 67.1 | 67.0 | 66.8 | 66.5 | 66.3 | 65.7 | 65.3 |
| Age | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 |
| Percentage of total population | ||||||||||||||||||||
| Ages 0–17 | 24.0 | 24.1 | 24.1 | 24.0 | 24.0 | 24.0 | 24.0 | 24.0 | 24.0 | 24.0 | 23.9 | 23.9 | 23.9 | 23.8 | 23.8 | 23.7 | 23.7 | 23.7 | 23.6 | 23.6 |
| Ages 18–64 | 62.9 | 62.7 | 62.5 | 62.2 | 61.9 | 61.6 | 61.3 | 61.0 | 60.7 | 60.4 | 60.0 | 59.7 | 59.4 | 59.0 | 58.7 | 58.4 | 58.1 | 57.8 | 57.6 | 57.4 |
| Ages 65 and older | 13.0 | 13.1 | 13.5 | 13.8 | 14.1 | 14.4 | 14.7 | 15.0 | 15.3 | 15.7 | 16.1 | 16.4 | 16.8 | 17.2 | 17.5 | 17.9 | 18.2 | 18.5 | 18.8 | 19.1 |
| Children ages 0–17 as a percentage of the dependent populationa | ||||||||||||||||||||
| Ages 0–17 | 64.8 | 64.8 | 64.1 | 63.6 | 63.0 | 62.5 | 62.0 | 61.5 | 61.0 | 60.4 | 59.8 | 59.3 | 58.7 | 58.1 | 57.6 | 57.0 | 56.5 | 56.1 | 55.7 | 55.3 |
| Age | 2030 | 2031 | 2032 | 2033 | 2034 | 2035 | 2036 | 2037 | 2038 | 2039 | 2040 | 2041 | 2042 | 2043 | 2044 | 2045 | 2046 | 2047 | 2048 | 2049 |
| Percentage of total population | ||||||||||||||||||||
| Ages 0–17 | 23.5 | 23.5 | 23.4 | 23.4 | 23.3 | 23.3 | 23.3 | 23.2 | 23.2 | 23.2 | 23.2 | 23.2 | 23.1 | 23.1 | 23.1 | 23.1 | 23.1 | 23.1 | 23.1 | 23.1 |
| Ages 18–64 | 57.2 | 57.1 | 57.0 | 57.0 | 56.9 | 56.8 | 56.7 | 56.7 | 56.7 | 56.8 | 56.8 | 56.8 | 56.9 | 56.9 | 56.9 | 56.8 | 56.8 | 56.8 | 56.7 | 56.7 |
| Ages 65 and older | 19.3 | 19.5 | 19.6 | 19.7 | 19.8 | 19.9 | 20.0 | 20.1 | 20.1 | 20.0 | 20.0 | 20.0 | 20.0 | 20.0 | 20.0 | 20.0 | 20.1 | 20.1 | 20.1 | 20.1 |
| Children ages 0–17 as a percentage of the dependent populationa | ||||||||||||||||||||
| Ages 0–17 | 54.9 | 54.7 | 54.5 | 54.3 | 54.1 | 53.9 | 53.7 | 53.7 | 53.6 | 53.6 | 53.6 | 53.7 | 53.7 | 53.7 | 53.7 | 53.6 | 53.6 | 53.5 | 53.5 | 53.5 |
| Age | 2050 | |||||||||||||||||||
| Percentage of total population | ||||||||||||||||||||
| Ages 0–17 | 23.1 | |||||||||||||||||||
| Ages 18–64 | 56.7 | |||||||||||||||||||
| Ages 65 and older | 20.2 | |||||||||||||||||||
| Children ages 0–17 as a percentage of the dependent populationa | ||||||||||||||||||||
| Ages 0–17 | 53.4 | |||||||||||||||||||
| a The dependent population includes all persons ages 17 and under and all persons ages 65 and older. | ||||||||||||||||||||
| NOTE: Population projections are based on the Census 2000 counts. | ||||||||||||||||||||
| SOURCE: U.S. Census Bureau, Current Population Reports, Estimates of the population of the United States by single years of age, color, and sex: 1900 to 1959 (Series P-25, No. 311); Estimates of the population of the United States, by age, sex, and race: April 1, 1960, to July 1, 1973 (Series P-25, No. 519); Preliminary estimates of the population of the United States by age, sex, and race: 1970 to 1981 (Series P-25, No. 917); and intercensal estimates for 1980–1989 and 1990–1999. The data for 2000 to 2009 are based on the population estimates released for July 1, 2009. Data for 2010 are from the 2010 decennial census. The data for 2030 and 2050 are derived from the national population projections released in August 2008. | ||||||||||||||||||||
