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GeoLytics News: American Community Survey (ACS) 2009 data released by GeoLytics

Wednesday, October 19, 2011

American Community Survey (ACS) 2009 data released by GeoLytics

The American Community Survey (ACS) for 2009 is now available from GeoLytics. This easy-to-use product allows users to select the Area covered, Geography the data is available, any and all of the variables released, and the output format -- then simply select "run" and your report will appear ready for use. You are no longer constrained to select just 256 variables or to go through the selection one county at a time (as on the USCB web site).

The ACS is comprised of three data sets. The 1-year counts cover only those geographies with over 65,000 inhabitants - so you can get data for states or MSAs etc. The 3-year counts (2007-09) cover those geographies with over 20,000 inhabitants - these include cities, large counties etc. And with the new 5-year counts (2005-09) the ACS has data down to the Block Group and Tract level.

The various versions of the ACS estimates in combination have replaced the Census Bureau's Long Form (SF3) which will no longer be conducted. They include demographics such as Income, Employment, Commuting, Education, etc. However, the multi-year ACS estimates do not depict what is going on in any particular year, only what the average value is over the full time period. Whereas the Long Form was a discrete time period and gave you a snapshot of what the entire country looked like at that moment. On the upside, the ACS has many new geographies that were not available on the Long Form and in fact has such a large dataset for so many geopgraphies that it takes 4 DVDs (or better yet one 16GB memory stick) to hold it all.

For a complete list of variables, please go to our website at http://www.geolytics.com/USCensus,AmericanCommunitySurvey,Data,Variables,Products.asp

The 2009 ACS product is set in the 2000 census boundaries making it a great addition to your data library for time series analysis. It will allow you to see 2009 data in the same 2000 boundaries as the normalized products for 1970, 1980, 1990 and the 2000 data -- so you can analyze 5 decades all in the 2000 boundaries.

The ACS 2009 will come with all of the regular features that you expect in the GeoLytics product -- exporting data as a .csv, .txt or .dbf file; running maps and exporting them as mid/mif or shapefiles, having access to all of the variables for all of the geographies.

For more information about the American Community Survey 2009, please visit our website at: http://www.geolytics.com/USCensus,AmericanCommunitySurvey,Data,Features,Products.asp


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