The Decennial Census is the nation’s oldest and most comprehensive source of population and housing information. As provided for in the Constitution, the U.S. Government uses the Census Bureau’s count of the population in each state to apportion the seats in the House of Representatives. The Decennial Census data are also used in drawing congressional and state legislative districts and distributing hundreds of billions of dollars of federal funds each year. State, local, and tribal governments use the data to make a wide variety of decisions to improve their communities. Businesses, nonprofit organizations, and governments use it as the basis for research, planning, and investment. The decennial census produces the widest range of information available at the smallest geographic levels.

Beginning in 1920, Guam was included in the population part of the Decennial Census, and in 1960 for the Housing Census.

• Demographic Profile
  
  The Population and Housing Profile: 2000 for Guam contains tables that include Census 2000 data on topics such as age and sex distribution, ethnic origin and race, household relationship, school enrollment, place of birth, income and poverty, and housing occupancy and tenure (whether the occupant owns or rents). The profile includes 60 data items in all.

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  • Guam Profile 2000 Summary Table
  • Guam Level Comparison Table
  • Guam Profile 1990-2000 Comparison
  
  
  
• Summary File
  
  The Summary file for Guam contains data on basic demographic, social, economic, and housing characteristics compiled from the items on the questionnaire used for the Census 2000 on Guam. The Guam Summary Files includes 397 detailed tables---248 population tables and 149 housing tables that are identified according to geographic coverage.

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  • Census 2000 Guam Island Level Summary File
  • Census 2000 Guam Village Level Summary File
  
  
• Other 2000 Guam Census Publications

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  • Census 2000: Social, Economic, and Housing Characteristics (PHC-4)
  • Census 2000: Special Tabulation (Crosstabulations)
  
  
• 2000 Census Special Topics

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  • Chamorro Population in the U.S.
  • Micronesian Population in the U.S.