Although the American Community Survey (ACS) produces population, demographic and housing estimates, it is the Census Bureau's Population Estimates Program that produces and disseminates the official estimates of the population for the nation, states, counties, cities and towns and estimates of housing units for states and counties. The ACS should be used to examine housing, demographic, social, and economic characteristics of the population. Detailed guidance on how to compare ACS data to other Census data sets is available on our web site.