United States COVID-19 County Policy Database, 2020-2021

The objective of the U.S. COVID-19 County Policy (UCCP) Database was to systematically gather, characterize, and assess geographic and longitudinal variation in U.S. COVID-19-related policies at the county and state levels. The research team gathered policy data on a weekly basis for 309 counties in 50 states and Washington D.C. Although these counties were not nationally representative, they included over half of the U.S. population and were diverse with respect to geography, the race/ethnicity of residents, and political climate. Weekly data were collected between January 2020 and December 2021 on a wide range of COVID-19-related policies that were in effect, providing a longitudinal picture of county policies during that period.