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Microdata

SOC Microdata files are usually published on the first workday of June for the previous year.


About Survey of Construction Microdata Files

Annual microdata files contain all Survey of Construction (SOC) sampled single-family houses started, sold, and/or completed during the year. Houses authorized by building permits but not started at the end of the year, under construction at the end of the year, or for sale at the end of the year are also included. Houses for which construction was abandoned after permit issuance or after start are not included.

The files contain no information that would identify the specific addresses or builders of the sampled houses. In addition, certain variables such as sales price (SLPR) and square footage (SQFS) have been "top and bottom-coded" to further remove the possibility of disclosure. Cases that have been modified as such are identified with "flags." The relationship of modified variables with other variables will be altered.

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Download Files


The Census Bureau has reviewed the SOC Microdata file for unauthorized disclosure of confidential information and has approved the disclosure avoidance practices applied. Files from 2017 forward display the authorization number (CBDRB-FYyy-####). Files prior to 2017 were similarly reviewed prior to the numbering system.

Files from 2020 forward are in xlsx format. They are no longer zipped, since xlsx files are compressed by default.
2024 SOC Microdata - CBDRB-FY25-0285
2023 SOC Microdata - CBDRB-FY24-0292
2022 SOC Microdata - CBDRB-FY23-0316
2021 SOC Microdata - CBDRB-FY22-0255
2020 SOC Microdata - CBDRB-FY21-0212

Files from 1999 - 2019 are in xls format. They have been zipped to save file space.
2019 SOC Microdata - CBDRB-FY20-0386
2018 SOC Microdata - CBDRB-FY19-0409
2017 SOC Microdata - CBDRB-FY18-0317
2016 SOC Microdata
2015 SOC Microdata
2014 SOC Microdata
2013 SOC Microdata
2012 SOC Microdata
2011 SOC Microdata
2010 SOC Microdata
2009 SOC Microdata
2008 SOC Microdata
2007 SOC Microdata
2006 SOC Microdata
2005 SOC Microdata
2004 SOC Microdata
2003 SOC Microdata
2002 SOC Microdata
2001 SOC Microdata
2000 SOC Microdata
1999 SOC Microdata


Using the SOC Microdata Files

Information on each variable contained in the files is shown in the Microdata Variables Excel Guide [48 kb] or the Printer-friendly Microdata Guide PDF [261 kb].

If you are unsure how to use the Microdata files, you may want to download the Working with SOC Microdata guide to get you started. This guide walks through the steps of creating basic data tables using Excel PivotTables.

To obtain SOC microdata file(s) in SAS format, please call (301) 763-5160.
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