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 of the socioeconomic data that was formerly obtained from the decennial census. ACS data is available for three types of releases depending on population size: annually, three-year periods and five-year periods.
Annual ACS data are available for all geographies (e.g., U.S., states, counties, municipalities, places) with a population of 65,000 or more.
Three-year period ACS estimates are available for all geographies with a population of 20,000 or more.
Five-year period ACS estimates are available for all geographies down to census tracts and block groups.
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 :
Percent By Maryland and It's Jurisdictions :
Raw Data - Detailed Occupation by Sex & Race/Ethnicity for Residence Geography:
State of Maryland | Maryland's Jurisdictions
Calculations of Statistical Significance & MOEs of Combinations of ACS Data
Spreadsheet for Calculating Margins of Error and Statistical Significance for Sums, Proportions and Ratios
Note: Calculations include "Significance test for Difference between two Estimates", "Calculate the Standard Error of the Difference or Sum of Two Estimates", "Calculate the Standard Error of Sum of More Than Two Estimates", "Calculate the Standard Error of a Proportion" and "Calculate the Standard Error of a Ratio"
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