Available datasets include files for each completed wave of the Covid surveys (new data files released every two weeks) as well as longitudinal files that combine all Covid survey waves into easy-to-use datasets, updated with a consistent variable naming structure to simplify data comparisons between the different waves, and sample weights. In addition, several derived variables are included in the files, as well as indicators for wave number, UAS survey number, and survey type (long versus short form). The two longitudinal files are:

  1. Full data waves from the long-form national surveys, administered once every fourteen days
  2. Full data waves from the long-form survey for the subset of Los Angeles County respondents, combined with data from Los Angeles County-only short-form surveys. Los Angeles County respondents are surveyed once every seven days

These data sets may be linked to other UAS survey data files downloadable from our survey page, using a unique UAS ID code (uasid). CESR does not release personal identifiers associated with these data to researchers, who may apply for "not human subjects" determinations from their local IRB for their analysis.

These data can also be easily linked to external data sources at the state level using the included state of residence variable. If you are interested in county-level or zipcode-level linkages to external data sources, please review the information provided on the External data sources tab.


An overall description of the UAS Covid-19 surveys can be found in the UAS COVID-19 Panel Description. Questionnaires, codebooks, toplines and other documentation are available without need for registration via the Documentation tab. A comparison of the UAS Covid-19 data with several other Covid-19 survey data sources is available in the UAS Covid-19 Comparison With Other Data Sources.

For more information or if you have any questions, submit a question here or contact us at