Data Dictionary: | ACS 2010 (5-Year Estimates) Comparability Data |
Data Source: | U.S. Census Bureau |
In 2010 three types of estimates are available from the American Community Survey: 1-year estimates (based on data collected in a single year), 3-year estimates (based on data collected in three consecutive years) and 5-year estimates (based on data collected in five consecutive years). to help users determine which estimates to select, a basic comparison of 1-year, 3-year and 5-year estimates Is provided below. Additional information about the interpretation and use of 1-year, 3-year and 5-year estimates Is available in the Guidance for Data User section on the http://www.census.gov/acs/www/guidance_for_data_users/estimates/.
1-Year Estimates:
The 2009 ACS 1-year estimates are based on data collected between January 2009 and December 2009.
3-Year Estimates:
The 2007-2009 ACS 3-year estimates are based on data collected between January 2007 and December 2009.
5-Year Estimates:
The 2005-2009 ACS 5-year estimates are based on data collected between January 2005 and December 2009 (during calendar years 2005, 2006, 2007, 2008 and 2009). Data are from the American Community Survey and the Puerto Rico Community Survey.
Please note that these are not the Census 2010 population counts.