Here are some notable changes for the 2013 ACS Summary Files:
- New Layout for the ACS Summary File Technical Document
This year, we created one core technical document for the 2013 ACS 1-year, 2011-2013 ACS 3-year, and 2009-2013 ACS 5-year data releases with separate appendices specific to each release. Appendices E and F from earlier years are now Appendices A and B for the 2013 data releases. In addition, worked examples from previous technical documents are now available on the ACS Summary File page at http://www.census.gov/acs/www/data_documentation/summary_file/
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- Format Change for Sequence Number Table Number Lookup Files
In previous years, we released the Sequence Number and Table Number Lookup Files in xls, sas7bdat, and txt formats. This year, we released the files in two formats: xls and sas7bdat.
- Block Groups Now Available in American FactFinder
For the first time with the 2009-2013 ACS 5-year data release, data for census block groups are published in American FactFinder, as well as the ACS Summary File. Block group level data for earlier years are only available in the ACS Summary File.
You can learn more about accessing block group level data using the ACS Summary File Retrieval Tool by viewing a video on the ACS Summary File page at http://www.census.gov/acs/www/data_documentation/summary_file/
- TIGER/Line Shapefiles Pre-Joined with ACS Estimates Available
Did you know that TIGER/Line Shapefiles are available pre-joined with ACS 5-year estimates in geodatabase format? You can access these files on the TIGER Products page at http://www.census.gov/geo/maps-data/data/tiger-data.html
- Summary Level 080 Removed
Beginning with the 2009-2013 ACS 5-year data release, we will no longer produce estimates for summary level 080: State-County-County Subdivision-Place/Remainder-Census Tract. Summary level 080 estimates are for portions of tracts that are the intersecting areas of county subdivisions and places, or portions of county subdivisions and places that are the intersecting areas with tracts. We will continue to produce Census tract level estimates (summary level 140: State-County-Census Tract).
- Two additional areas included in the 2009-2013 ACS 5-Year Summary File
The 2009-2013 ACS 5-Year Summary File contains two areas from summary level 070: State-County-County Subdivision-Place/Remainder that are not available on American FactFinder. These geographies are "Louisville city (part), Louisville Central CCD, Jefferson County, Kentucky" and "Louisville city (part), Louisville West CCD, Jefferson County, Kentucky."