Maryland Department of Planning State Data & Analysis Center

 ACS Data

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​​​​​​​​​ACS One-year

Data available for population of 65,000 or more for all geographies​.

2024 | ​ 2023 | 2022 | 2021 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004  | 2003  | 2002

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ACS Five-year 

Note: The Census Bureau has revised the release date of the 2020-2024 American Community
Survey 5-Year data to January 29, 2026.​

Data available for all geographies down to census tracts & block groups.

2019-2023​ | 2018-2022​ |2017-2021​ | 2016-2020 | 2015-2019 | 2014-2018 | 2013-2017 | 2012-2016 | 2011-2015 | 2010-2014 | 2009-2013 | 2008-2012 | 2007-2011 | 2006-2010 | 2005-2009 ​
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ACS Three-year

Note: discontinued after 2013

2011-2013  | 2010-2012  | 2009-2011  | 2008-2010  | 2007-2009  | 2006-2008  | 2005-2007​​

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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
  • Standard Error of the Difference or Sum of Two Estimates
  • Standard Error of Sum of More Than Two Estimates
  • Standard Error of a Proportion" and "Calculate the Standard Error of a Ratio"
​ ​​Census Database and Retrieval Tools
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Maryland Department of Planning
120 E. Baltimore St, Suite 2000
Baltimore, MD 21202
(410) 767-4500