The American Community Survey (ACS) is an ongoing, nationwide, monthly survey covering approximately three-million households each year and is now the source for all socioeconomic data. Data that were collected by the 10-year Census in what was known as its long-form questionnaire. Following Census 2000, this detailed information is captured by the ACS. ACS data are available for three types of releases depending on population size: annual, three-year, and five-year periods. (Note: 3-year ACS Estimates were discontinued following the release of the 2009-2012 ACS Estimates). Annual ACS data are avaiable for all geographies (U.S., states, counties, and places)with a minimum population of 65,000. The 5-year ACS estimates have no population size restriction; these estimates are available for all geographies down to census tracts and block groups.
The ACS 5-year Estimates are described as a composite of 5 years (60 months) of data.
ACS Three-year Data (population of 20,000 or more for all geographies) :
Note: The Census Bureau has discontinued the three-year ACS data. The last three-year data release was for the 2011-2013 period. There will be no more three-year data releases.
Socioeconomic Characteristics for Maryland's Jurisdictions and Places:
ACS Five-year Data (data available for all geographies down to census tracts & block groups) :
Socioeconomic Characteristics for Maryland's Legislative Districts :
Voting Age Population in Maryland :
