The American Community Survey (ACS) is a nationwide Census Bureau survey designed to provide communities with an annual update of the demographic, social, economic, and housing characteristics traditionally obtained from the decennial census.

Beginning with the 2005 data, the ACS provides annual characteristic data for communities with a population of 65,000 or more.  In New York State, the ACS now provides characteristics for 38 counties, 7 cities, and 16 towns annually. (See the list)

To obtain reliable small area estimates from the American Community Survey, the Census Bureau uses data gathered over a 3-year period. In December 2008, the Census Bureau released ACS estimates for all communities of 20,000 or more population based on the 3-year estimates for 2005 through 2007. In December 2010, the ACS estimates will be based on a 5-year period and include all geographic areas, regardless of size.

Users should be cautious if attempting to compare American Community Survey data to the 2000 Census. There are many differences in data concepts and enumeration procedures. Also, the 2005 ACS’s universe was limited to the population living in households, excluding people in living arrangements like college dormitories, military barracks, prisons, and nursing homes.

Comparing the Census & American Community Survey

Federal Census Resources
American Community Survey Data Access
American Community Survey and General Census Data Access

Return to Data Center - Main.