| Number (in millions) | 1950 | 1951 | 1952 | 1953 | 1954 | 1955 | 1956 | 1957 | 1958 | 1959 | 1960 | 1961 | 1962 | 1963 | 1964 | 1965 | 1966 | 1967 | 1968 | 1969 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| All Children | 47.3 | 48.8 | 50.5 | 52.1 | 53.9 | 55.7 | 57.5 | 59.5 | 61.3 | 63.1 | 64.5 | 65.8 | 67.1 | 68.4 | 69.7 | 69.7 | 69.9 | 69.9 | 69.9 | 69.8 |
| Age | ||||||||||||||||||||
| Ages 0–5 | 19.1 | 20.0 | 21.0 | 21.1 | 21.5 | 22.0 | 22.6 | 23.2 | 23.7 | 24.1 | 24.3 | 24.5 | 24.6 | 24.5 | 24.3 | 23.9 | 23.4 | 22.6 | 21.9 | 21.3 |
| Ages 6–11 | 15.3 | 15.8 | 16.2 | 17.5 | 18.4 | 18.9 | 19.6 | 20.4 | 21.4 | 21.4 | 21.8 | 22.3 | 22.8 | 23.4 | 23.8 | 24.2 | 24.4 | 24.7 | 24.8 | 24.7 |
| Ages 12–17 | 12.9 | 13.1 | 13.3 | 13.6 | 14.0 | 14.8 | 15.4 | 15.9 | 16.3 | 17.6 | 18.4 | 19.0 | 19.7 | 20.6 | 21.6 | 21.6 | 22.1 | 22.6 | 23.2 | 23.7 |
| Number (in millions) | 1970 | 1971 | 1972 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 | 1983 | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 |
| All Children | 69.8 | 69.8 | 69.4 | 68.8 | 68.0 | 67.2 | 66.3 | 65.5 | 64.8 | 64.1 | 63.7 | 63.2 | 62.8 | 62.6 | 62.5 | 62.6 | 62.9 | 63.1 | 63.2 | 63.5 |
| Age | ||||||||||||||||||||
| Ages 0–5 | 20.9 | 20.8 | 20.6 | 20.2 | 19.9 | 19.7 | 19.3 | 18.9 | 18.9 | 19.2 | 19.6 | 20.0 | 20.5 | 20.8 | 21.1 | 21.4 | 21.5 | 21.7 | 21.8 | 22.1 |
| Ages 6–11 | 24.6 | 24.3 | 23.9 | 23.2 | 22.6 | 22.1 | 21.7 | 21.5 | 21.3 | 21.0 | 20.8 | 20.4 | 19.9 | 19.5 | 19.4 | 19.6 | 20.0 | 20.4 | 20.9 | 21.3 |
| Ages 12–17 | 24.3 | 24.7 | 25.0 | 25.3 | 25.5 | 25.4 | 25.3 | 25.0 | 24.6 | 23.9 | 23.3 | 22.8 | 22.4 | 22.2 | 22.0 | 21.6 | 21.3 | 21.0 | 20.5 | 20.1 |
| Number (in millions) | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 |
| All Children | 64.2 | 65.3 | 66.5 | 67.6 | 68.6 | 69.5 | 70.2 | 70.1 | 71.4 | 71.9 | 72.4 | 72.6 | 72.9 | 73.1 | 73.3 | 73.5 | 73.7 | 74.0 | 74.1 | 74.2 |
| Age | ||||||||||||||||||||
| Ages 0–5 | 22.5 | 22.9 | 23.3 | 23.5 | 23.7 | 23.7 | 23.5 | 23.3 | 23.2 | 23.1 | 23.2 | 23.3 | 23.4 | 23.6 | 23.9 | 24.2 | 24.5 | 24.9 | 25.1 | 25.4 |
| Ages 6–11 | 21.6 | 22.0 | 22.2 | 22.5 | 22.7 | 23.0 | 23.6 | 24.0 | 24.5 | 24.8 | 25.0 | 24.9 | 24.6 | 24.3 | 24.0 | 23.8 | 23.7 | 23.7 | 23.8 | 24.1 |
| Ages 12–17 | 20.1 | 20.4 | 21.0 | 21.6 | 22.2 | 22.7 | 23.1 | 23.5 | 23.8 | 24.0 | 24.2 | 24.4 | 24.9 | 25.2 | 25.4 | 25.5 | 25.5 | 25.4 | 25.1 | 24.7 |
| Number (in millions) | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||||||
| All Children | 74.4 | 74.8 | 75.2 | 75.7 | 76.3 | 77.0 | 77.8 | 78.5 | 79.2 | 79.7 | 80.3 | |||||||||
| Age | ||||||||||||||||||||
| Ages 0–5 | 25.6 | 25.9 | 26.1 | 26.3 | 26.6 | 26.8 | 26.9 | 27.1 | 27.2 | 27.4 | 27.5 | |||||||||
| Ages 6–11 | 24.4 | 24.7 | 25.0 | 25.2 | 25.4 | 25.7 | 25.9 | 26.2 | 26.4 | 26.6 | 26.9 | |||||||||
| Ages 12–17 | 24.4 | 24.2 | 24.1 | 24.2 | 24.3 | 24.6 | 24.9 | 25.2 | 25.5 | 25.7 | 26.0 | |||||||||
| 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); intercensal estimates for 1980–1989; and intercensal estimates for 1990–1999. The data for 2000 to 2006 are based on the population estimates released for July 1, 2006. The data for 2007 and beyond are derived from the interim national population projections released in March 2004. | ||||||||||||||||||||