Census 2000 PHC-T-9. Population by Age, Sex, Race, and Hispanic or Latino Origin for the United States: 2000 Table 7. Median Age of the Population: 1820 to 2000 Internet Release date: October 3, 2001 [For information on confidentiality protection, nonsampling error, and definitions for 2000, see http://www.census.gov/prod/cen2000/doc/sf1.pdf] ------------------------------ Year | Median age (years) ------------------------------ 2000 35.3 1990 32.9 1980 30.0 1970 28.1 1960 29.5 /1 1960 29.6 1950 30.2 1940 29.0 1930 26.5 1920 25.3 1910 24.1 1900 22.9 1890 22.0 1880 20.9 1870 20.2 1860 19.4 1850 18.9 1840 17.8 1830 17.2 1820 16.7 ------------------------------ Source: U.S. Census Bureau, Historical Statistics of the United States, Colonial Times to 1970, Bicentennial Edition, Part 1, Series A 143-157; 1980 Census of Population, Volume 1, Characteristics of the Population (PC80-1); 1990 Census of Population, General Population Characteristics, United States (1990 CP-1-1); and Census 2000, Profile of General Demographic Characteristics for the United States: 2000. /1 This value and later years include Alaska and Hawaii.