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2021 SIPP Data

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2021 SIPP Data

The 2021 SIPP continued to face data collection complications due to the COVID-19 pandemic and a general lower-than-average unit response rate nationally.  For technical documentation and more information about SIPP data quality, please visit the Technical Documentation page.

⚠️ An issue was discovered with Social Security Income processing that affected 2014 through 2021 SIPP data. Please see the Processing Error Affecting Social Security ‘Self’ Amounts user note for more information.

2021 SIPP Data Technical Documentation

pdf 2021 SIPP Release Notes [< 1.0 MB]
pdf 2021 SIPP Users' Guide [< 1.0 MB]
pdf 2021 SIPP Instrument Specifications [< 1.0 MB]
xls 2021 SIPP Crosswalks - 2020 to 2021 [< 1.0 MB]
xls 2021 SIPP Crosswalks - 2021 to 2020 [< 1.0 MB]
xls 2014-2021 SIPP Variable Name Change Summary [< 1.0 MB]
Online Codebook
Online codebook tool for searching SIPP metadata.

Data and Documents - Primary Data File

The main 2021 SIPP survey response microdata file, in SAS, STATA, and pipe-delimited text formats, compressed as zip and gzip archives.

SAS Data Format

zip Windows/Mac (.zip) [398 MB]
zip GNU/Linux (.gz) [398 MB]

STATA Data Format

zip Windows/Mac (.zip) [982 MB]
zip GNU/Linux (.gz) [982 MB]

Pipe-Delimited Text Format

zip Windows/Mac (.zip) [156 MB]
zip GNU/Linux (.gz) [156 MB]

Supporting Documents

pdf 2021 SIPP Data Dictionary [< 1.0 MB]
txt Schema for Pipe-Delimited Text File [< 1.0 MB]
txt Python Pandas Input Example [< 1.0 MB]
txt R Input Example [< 1.0 MB]
xls Input Validation Summary Statistics [< 1.0 MB]

Data and Documents - Replicate Weights

Replicate weights for records on the 2021 SIPP primary data file, in SAS, STATA, and pipe-delimited text formats, compressed as zip and gzip archives.

SAS Data Format

zip Windows/Mac (.zip) [986 MB]
zip GNU/Linux (.gz) [986 MB]

STATA Data Format

zip Windows/Mac (.zip) [982 MB]
zip GNU/Linux (.gz) [982 MB]

Pipe-Delimited Text Format

zip Windows/Mac (.zip) [999 MB]
zip GNU/Linux (.gz) [999 MB]

Supporting Documents

txt Replicate Weight Data Dictionary [< 1.0 MB]
txt Schema for Pipe-Delimited Text File [< 1.0 MB]
txt Python Pandas Input Example [< 1.0 MB]
txt R Input Example [< 1.0 MB]
xls Input Validation Summary Statistics [< 1.0 MB]

Data and Documents - Longitudinal Weights for 4-Year Cohort

Longitudinal weights for the cohort of respondents who have data in the 2018 SIPP, 2019 SIPP, 2020 SIPP, and 2021 SIPP data files, in SAS, STATA, and pipe-delimited text formats, compressed as zip and gzip archives.

SAS Data Format

zip Windows/Mac (.zip) [< 1.0MB]
zip GNU/Linux (.gz) [< 1.0MB]

STATA Data Format

zip Windows/Mac (.zip) [< 1.0 MB]
zip GNU/Linux (.gz) [< 1.0 MB]

Pipe-Delimited Text Format

zip Windows/Mac (.zip) [< 1.0 MB]
zip GNU/Linux (.gz) [< 1.0 MB]

Supporting Documents

txt Longitudinal Weight Data Dictionary [< 1.0 MB]
txt Schema for Pipe-Delimited Text File [< 1.0 MB]
xls Input Validation Summary Statistics [< 1.0 MB]

Data and Documents - Longitudinal Weights for 3-Year Cohort

Longitudinal weights for the cohort of respondents who have data in the 2019 SIPP, 2020 SIPP, and 2021 SIPP data files, in SAS, STATA, and pipe-delimited text formats, compressed as zip and gzip archives.

SAS Data Format

zip Windows/Mac (.zip) [< 1.0MB]
zip GNU/Linux (.gz) [< 1.0MB]

STATA Data Format

zip Windows/Mac (.zip) [< 1.0 MB]
zip GNU/Linux (.gz) [< 1.0 MB]

Pipe-Delimited Text Format

zip Windows/Mac (.zip) [< 1.0 MB]
zip GNU/Linux (.gz) [< 1.0 MB]

Supporting Documents

txt Longitudinal Weight Data Dictionary [< 1.0 MB]
txt Schema for Pipe-Delimited Text File [< 1.0 MB]
xls Input Validation Summary Statistics [< 1.0 MB]

Data and Documents - Longitudinal Weights for 2-Year Cohort

Longitudinal weights for the cohort of respondents who have data in the 2020 SIPP and 2021 SIPP data files, in SAS, STATA, and pipe-delimited text formats, compressed as zip and gzip archives.

SAS Data Format

zip Windows/Mac (.zip) [< 1.0MB]
zip GNU/Linux (.gz) [< 1.0MB]

STATA Data Format

zip Windows/Mac (.zip) [< 1.0 MB]
zip GNU/Linux (.gz) [< 1.0 MB]

Pipe-Delimited Text Format

zip Windows/Mac (.zip) [< 1.0 MB]
zip GNU/Linux (.gz) [< 1.0 MB]

Supporting Documents

txt Longitudinal Weight Data Dictionary [< 1.0 MB]
txt Schema for Pipe-Delimited Text File [< 1.0 MB]
xls Input Validation Summary Statistics [< 1.0 MB]

Data and Documents - Longitudinal Replicate Weights for 4-Year Cohort

Longitudinal replicate weights for the cohort of respondents who have data in the 2018 SIPP, 2019 SIPP, 2020 SIPP, and 2021 SIPP data files, in SAS, STATA, and pipe-delimited text formats, compressed as zip and gzip archives.

SAS Data Format

zip Windows/Mac (.zip) [84 MB]
zip GNU/Linux (.gz) [84 MB]

STATA Data Format

zip Windows/Mac (.zip) [85.9 MB]
zip GNU/Linux (.gz) [85.9 MB]

Pipe-Delimited Text Format

zip Windows/Mac (.zip) [70.0 MB]
zip GNU/Linux (.gz) [70.0 MB]

Supporting Documents

txt Longitudinal Replicate Weight Data Dictionary [< 1.0 MB]
txt Schema for Pipe-Delimited Text File [< 1.0 MB]
xls Input Validation Summary Statistics [< 1.0 MB]

Data and Documents - Longitudinal Replicate Weights for 3-Year Cohort

Longitudinal replicate weights for the cohort of respondents who have data in the 2019 SIPP, 2020 SIPP, and 2021 SIPP data files, in SAS, STATA, and pipe-delimited text formats, compressed as zip and gzip archives.

SAS Data Format

zip Windows/Mac (.zip) [84 MB]
zip GNU/Linux (.gz) [84 MB]

STATA Data Format

zip Windows/Mac (.zip) [85.9 MB]
zip GNU/Linux (.gz) [85.9 MB]

Pipe-Delimited Text Format

zip Windows/Mac (.zip) [70.0 MB]
zip GNU/Linux (.gz) [70.0 MB]

Supporting Documents

txt Longitudinal Replicate Weight Data Dictionary [< 1.0 MB]
txt Schema for Pipe-Delimited Text File [< 1.0 MB]
xls Input Validation Summary Statistics [< 1.0 MB]

Data and Documents - Longitudinal Replicate Weights for 2-Year Cohort

Longitudinal replicate weights for the cohort of respondents who have data in the 2020 SIPP and 2021 SIPP data files, in SAS, STATA, and pipe-delimited text formats, compressed as zip and gzip archives.

SAS Data Format

zip Windows/Mac (.zip) [84 MB]
zip GNU/Linux (.gz) [84 MB]

STATA Data Format

zip Windows/Mac (.zip) [85.9 MB]
zip GNU/Linux (.gz) [85.9 MB]

Pipe-Delimited Text Format

zip Windows/Mac (.zip) [70.0 MB]
zip GNU/Linux (.gz) [70.0 MB]

Supporting Documents

txt Longitudinal Replicate Weight Data Dictionary [< 1.0 MB]
txt Schema for Pipe-Delimited Text File [< 1.0 MB]
xls Input Validation Summary Statistics [< 1.0 MB]

 

2021 User Notes

2021 Data User Notes
Notes on the 2021 SIPP data that users should be aware of.

Related Data

2020 SIPP Data
2020 SIPP data files covering the reference period January - December 2019.
Page Last Revised - August 24, 2023
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