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2018

Technical Documentation

The Summary File Core Technical Document is now available as What ACS Summary File Data Users Need to Know.

Documentation on how to use the ACS Summary File with Excel or TIGER/Line Shapefiles

Component ID: #ti668495657

Appendices include the sequence number and restrictions for all tables, as well as summary levels available for each release.

xls   1-year Appendices   [<1.0 MB]
xls   5-year Appendices   [<1.0 MB]

Summary File User Tools

Component ID: #ti668495654

Table Shells

Contains table ID, line number, unique ID (table ID + Line Number), stub, and data release

xls   Table Shells   [2.1 MB]
Component ID: #ti668495653

Sequence Number/Table Number Lookup File

Contains information on the relationship between the sequences and the tables

1-year Lookup File

zip   SAS format   [12 MB]
xls   Excel format   [1.5 MB]
txt   Text format   [2.1 MB]

5-year Lookup File

zip   SAS format   [9.2 MB]
xls   Excel format   [2.3 MB]
txt   Text format   [1.6 MB]
Component ID: #ti568292763

Simplified Geography Files

Contains basic geography information, including LOGRECNO, GEOID, and name, in an Excel file with tabs for the US, as well as each state or state equivalent.  Compared to the standard geography files in .csv and .txt format, these simplified files contain only the geography variables needed to read the ACS Summary File into Excel.

Component ID: #ti668495652

SAS Programs

Contains SAS programs for each sequence per state, which can be used to convert each estimate and margin of error into SAS datasets with table stubs

Component ID: #ti668495651

Detailed example SAS program containing SAS macros which access the geography, estimate and margin of error data. It creates one table for all geographies from the ACS Summary File. Segments of the SAS codes can be used to convert geography files into SAS datasets.

txt   1-Year Macros   [<1.0 MB]
txt   5-Year Macros   [<1.0 MB]

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