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Standard Populations (Millions) for Age-Adjustment

Standard populations, often referred to as standard millions, are the age distributions used as weights to create age-adjusted statistics. Files containing standard population data for use in statistical software are available below. These contain the same data distributed with the SEER*Stat software. SEER also provides US Population Data which can be used for analyses with SEER*Stat or other software.

Starting with the November 2004 SEER submission of data (diagnoses through 2002), the SEER Program age-adjusts using the 2000 US standard population based on single years of age from the Census P25-1130 (PDF) 1 series estimates of the 2000 US population. For the 5-year age groups, the single year of age populations are summarized from the five single-year of age populations. See 2000 US Standard Population vs. Standard Million for more discussion.

Standard Population Files

The standard population data files contain the following data:

  • US Standards (1940, 1950, 1960, 1970, 1980, 1990, 2000)
  • World Standard
  • Canadian Standards (1991, 1996)
  • European Standard

View the Standard Populations

Download the Data Files

File format information is provided in the Standard Population Data Dictionary.

1 Day, Jennifer Cheeseman, Population Projections of the United States by Age, Sex, Race, and Hispanic Origin: 1995 to 2050, U.S. Bureau of the Census, Current Population Reports, P25-1130, U.S. Government Printing Office, Washington, DC, 1996. (