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.

For questions about SIPP data, visit the Contact Us page.

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.

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.

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.

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.

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.

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.

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.